3-1 & 3-2 Solving Multi-Step Equations (p. 119 & p. 126) Algebra 1 Prentice Hall, 2007.

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Presentation transcript:

3-1 & 3-2 Solving Multi-Step Equations (p. 119 & p. 126) Algebra 1 Prentice Hall, 2007

Definition To solve an equation means to “find the value of the variable that makes the equation TRUE”. Ex. Is -5 the solution to ? No, because What value of x would make it true?

Steps to Solve Linear Equations 1. Clear the parentheses by using the Distributive Property. 2. Clear fractions/decimals by multiplying both sides of the equation by the common denominator. 3. Collect all variables on 1 side of the equation by adding/subtracting the whole term. 4. Combine like terms. 5. Isolate the variable by “undoing” operations (+,-,x,  ) in reverse Order of Ops order. 6. Check your solution!

Examples 1. Solve: 2. Solve: 3. Solve: 4. Solve:

Examples 5. Solve: 6. Solve: 7. Solve: 8. Solve:

Examples 9. Solve: 10. Solve: 11. Solve:

Homework 3-1 p. 122: odds (1-19, 29-39, 47-53): + 42, 59, p. 129: odds (1-51); + 58 REMEMBER: Write the problem! Show your work! Box your answers!NO Exceptions!!!!