One step equations 3-3-1. Up to this point, variables have only been used in expressions. These expressions have been simplified. Sometimes the number.

Slides:

Advertisements

Similar presentations

Solving 2 Step Equations

Advertisements

Math 025 Unit 5 Section 6.7.

1.1 Linear Equations A linear equation in one variable is equivalent to an equation of the form To solve an equation means to find all the solutions of.

Algebraic Fractions and Forming Equations Learning Outcomes  Simplify algebraic fractions  Add, subtract, multiply and divide algebraic fractions  Solve.

Aim: How do we solve equations with fractional or negative exponents?

Simplifying Algebraic Expressions Click here to find out how!here.

Chapter 2 Lesson 1 Solving ONE STEP EQUATIONS ONE STEP EQUATIONS What you do to one side of the equation must also be done to the other side to keep.

Solving Equations A “Balanced” Approach Skip to Integer Practice Skip to One-Step Equations Skip to Two-Step Equations.

Solve equations using addition and subtraction.

More Practice with Equations Containing Fractions.

Solve two-step equations. 3.4 Objective The student will be able to:

Solving Equations When do we use solving equations? We use solving equations methods when we know what the problem equals but not what the variable is.

One-Step Equations I can show that solving an equation leads to finding the value that makes the equation true.

Solving Two-step Equations Algebraically. Ex. 1) 2x + 1 = 7 With algebra tiles Algebraically 2x + 1 = x = 3 2x + 1 = 7 X = 3 2x = 6 2 Take away,

Solving One-Step Equations Unit 10. To Solve an Equation 1.Isolate the variable – get the letter by itself Inverse Operation 2.Use the Inverse Operation.

* Collect the like terms 1. 2a = 2a x -2x + 9 = 6x z – – 5z = 2z - 6.

Solving 2 step equations. Two step equations have addition or subtraction and multiply or divide 3x + 1 = 10 3x + 1 = 10 4y + 2 = 10 4y + 2 = 10 2b +

Lesson 8.1. » A statement where two mathematical expressions are. » Think of an equation as a balance scale or teeter-totter. The left side must always.

1) Solve. -5t = 60 To get the variable by itself, which number needs to be moved? -5 To move the -5, you have to do the opposite operation. What operation.

Two-Step Equations Review 1-Step 2-Step Equations Practice Problems.

Balancing Equations The student will be able to: solve equations using addition and subtraction.

0.1 Solving One-Step Equations. To solve an equation means to find all values of the variable that make the equation true. Isolate the variable to one.

Solving Two- Step Equations

Rational Expressions and Equations

SOLVING ONE-VARIABLE EQUATIONS •. Goal: Find the one value

Students will use inverse operations to solve one-step equations.

Students will use inverse operations to solve one-step equations.

Students will use inverse operations to solve one-step equations.

Properties of Equality and Solving One-Step Equations

Solving Multi-Step Equations

Solve for variable 3x = 6 7x = -21

2 Understanding Variables and Solving Equations.

ONE STEP EQUATIONS.

ONE STEP EQUATIONS.

Warm Up Simplify each expression. 1. 3x + 2y – 5x – 2y

Example 2 4 m 8 m 5m 12 m x y.

Solving Equations A “Balanced” Approach Skip to One-Step Equations

Solving One Step Equations

Solving Two- Step Equations

Equations a balancing act.

Students will use inverse operations to solve one-step equations.

Students will use inverse operations to solve one-step equations.

Solving Multi-Step Equations

Think of this equation as a balance scale.

Objective Solve equations in one variable that contain variable terms on both sides.

Example 2 4 m 8 m 5m 12 m x y.

Solving Multi-Step Equations

Solving Two- Step Equations

2-1 & 2-2: Solving One & Two Step Equations

Solving Multi-Step Equations

Solving 1 and 2 Step Equations

Solving Multiplication Equations

Equations a balancing act.

Objective Solve equations in one variable that contain variable terms on both sides.

Solving Two- Step Equations

Solving Multi-Step Equations

Students will use inverse operations to solve one-step equations.

Think about… How is an equation like a balance scale?

Solving Multi-Step Equations

Objective The student will be able to:

2.2 Solving Equations with Variables on Both Sides

Learn to solve 2-step equations

Add Subtract Multiply Divide

Equations a balancing act.

Solving Two Step Algebraic Equations

ONE STEP EQUATIONS WHAT?!?!.

ONE STEP EQUATIONS.

Students will use inverse operations to solve one-step equations.

Add Subtract Multiply Divide

ONE STEP EQUATIONS.

Presentation transcript:

One step equations 3-3-1

Up to this point, variables have only been used in expressions. These expressions have been simplified. Sometimes the number represented by the variable was known and a value for the expression could be determined. Now, with an equation, the value for a variable can sometimes be determined.

Think of an equation as a scale. If you add something to one side, you must add the same amount to the other side to make it balance.

If the items on one side of the balance are split in half then the items on the other side also need to be split to make it balance.

The object of the puzzle is to get the x or other variable alone on one side of the equation. X+ 245 = X+ 245 = X+ 0 X = -1231

If it is subtracted Add The object of the puzzle is to get the variable by itself on one side of the equation. 2 1 / 3 = z – 4 1 / / 5 What you do here, do here. 2 1 / 3 = z – 4 1 / / / 5 z / 15 = z

Our new mantra Do the opposite. –if something is subtracted, add. What is done to one side of the equation, do to the other.

Do the opposite

If it is multiplied then divide.

Fractions another way