SOLVING MULTI-STEP EQUATIONS

By Ms. Morgan

Students will be able to:

• Calculate the missing angle measurements when given two parallel lines cut by a transversal.

• Solving multi-step equations by combining like terms, using the distributive property or moving variables to one side of the equation.

Math Standard:

• 8.G.5 Calculate the missing angle measurements when given two parallel lines cut by a transversal.

• 7.A.4 Solving multi-step equations by combining like terms, using the distributive property or moving variables to one side of the equation.

Do now:What is the inverse (opposite) operation of Addition SubtractionMultiplicationDivision

New Concept

Solving equations by moving variables to one side Step 1: Draw the line over the equal signStep 2: Move all the variables to one side and all

the numbers to the other by using the inverse operation.

Step 3: Combine like terms Step 4: Simplify

Equation: 9n + 36 = 54

Step 1: Draw the line over the equal signStep 2: Move all the variables to one side and all the numbers to the other by

using the inverse operation. Step 3: Combine like terms Step 4: Simplify

Equation: 3b + 2b – 10 = 50

Step 1: Draw the line over the equal signStep 2: Move all the variables to one side and all the numbers to the other by

using the inverse operation. Step 3: Combine like terms Step 4: Simplify

Equation: 5n + 20 = 36 + n

Step 1: Draw the line over the equal signStep 2: Move all the variables to one side and all the numbers to the other by

using the inverse operation. Step 3: Combine like terms Step 4: Simplify

On your own:USE LOOSE LEAF PAPER FOR THESE PROBLEMS. THEY WILL BE COLLECTED AND GRADED. PLEASE BE NEAT!

SOLVE THE FOLLOWING EQUATIONS. SHOW ALL YOUR WORK

-15 + c = 75 5m – 2 = 3312n + 12 = 144 6n + 2 = 3n + 11b/6 + 20 = 25 h / 3 = 5 + 3 4b + 5b – 2b = 49 r + 2r = 96v – 4v + 57 = 87 5m + 20 = 2m + 44

Step 1: Draw the line over the equal signStep 2: Move all the variables to one side and all the numbers to the other by using the inverse operation. Step 3: Combine like terms Step 4: Simplify