 # Section 3.3 Solving Multi-Step Equations **More than one operation to isolate the variable**

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Section 3.3 Solving Multi-Step Equations **More than one operation to isolate the variable**

Remember solving an equation is a balancing act. What you do to one side you have to do to the other!!

Steps to solving a linear equation: Simplify each side separately Isolate variable by using reverse order of operations. (SADMEP)

Solving a Linear Equation Write the original equation. Addition Prop of Equality Simplify. Division Property of Equality Simplify. CHECK

Solving a Linear Equation Write the original equation. Subtraction Property of Equality Simplify. Division Property of Equality Simplify. CHECK

Solving a Linear Equation Write the original equation. Subtraction Property of Equality Simplify. Multiplication prop of Equality Simplify. CHECK (3)

Combining Like Terms First… Write the original equation. Simplify (Combine like terms) Division Property of Equality Simplify. CHECK

Combining Like Terms First… Write the original equation. Simplify (combine like terms) Division property Simplify. CHECK

Combining Like Terms First… Write the original equation. Simplify (combine like terms) Division Prop of Equality Simplify. CHECK

Combining Like Terms First… Write the original equation. Combine like terms. Addition prop of Equality Simplify. CHECK Division property of equality 4 4

Your Turn Combining Like Terms First… CHECK

Using the Distributive Property… Write the original equation. Distributive prop Addition prop of equality Division prop of equality CHECK Simplify Simplify.

Using the Distributive Property… Write the original equation. Distributive prop. Simplify (combine like terms) Subtraction prop of equality Division prop of equality CHECK Simplify Simplify.

Using the Distributive Property… Write the original equation. Distributive prop Combine like terms. Subtraction prop of equality Division prop of equality CHECK Simplify Simplify.

Write the original equation. Distributive prop Simplify Subtraction property

Practice…

Multistep Word Problems Section 3.3 notes Word Document

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