Bell Work 9/8/14 Evaluate the expression..

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Bell Work 9/8/14 Evaluate the expression.

Next Chapter Chapter 2 Equations

Solving One-Step Equations (add + subtract) Heading 4/17/2017 Solving One-Step Equations (add + subtract) TSWBAT: solve one-step equations using addition and subtraction. Students solve multi-step problems, including word problems, involving linear equations and linear inequalities in one variable and provide justification for each step.

Notes Linear Equations the exponent of the variable(s) is one. variable is not in the denominator, inside a square root symbol, or inside an absolute value symbol. Linear Equation Not a Linear Equation

Notes Solving Equations Goal: to get the variable by itself on one side of the equation. This is known as isolating the variable. This is also called solving (to solve) an equation. When we solve an equation, we find the value that makes the equation TRUE, called the solution.

What you do to one side, you must do to the other. Notes Steps for Solving Linear Equations Simplify both sides of the equation. Distribute and/or combine like terms. 2. Collect the variables to one side of the equation. Collect to the side with the greater variable. 3. Use inverse operations to isolate the variable. PEMDAS backwards. The Golden Rule (of Mathematics) What you do to one side, you must do to the other.

Notes addition is subtraction. subtraction is addition. Inverse Operations = Inverse means opposite The inverse of … addition is subtraction. subtraction is addition. multiplication is division. division is multiplication.

Notes Solve the equation. Ex. Ex. Ex. What is the inverse? Check your answer! Check your answer! Now you try. Ex. Ex. Ex.

Notes Solve the equation. Ex. Ex. Ex. What is the inverse? Check your answer! Check your answer! Now you try. Ex. Ex. Ex.

Notes Solve the equation. Ex. Ex. Ex. What is the inverse? Check your answer! Check your answer! Now you try. Ex. Ex. Ex.

Write a summary about today’s lesson. To solve equations involving addition or ___________ just do the inverse operation. If the problem has addition, do ___________, if the problem has subtraction, do ________. If you ever have a double negative do leave, _______, change. subtraction subtraction addition change

9/8 Ticket Out the Door Complete the Ticket Out the Door without talking!!!!! Put your NAME & class hour on the index card. When finished, turn your index card face DOWN. Solve the equation.

Today’s Homework Rules for Homework Pencil ONLY. Must show all of your work. NO WORK = NO CREDIT Must attempt EVERY problem. Always check your answers.

Homework 2.1A Solve the equation.