Multi-Step Equations Review

What is the first step in solving the following equation?

-3x + 5 = 20

• Subtract 5 from both sides

• Divide both sides by -3

• Divide both sides by 3

• add 3x to both sides

Solve m - n = 5 for m.

• m = 5 + n

• m = -5 - n

• m = -5 + n

• m = 5 - n

Solve for x. 
x + 7g = 9

• x = 9 - 7g

• x = 9 / 7g

• x = 9 + 7g

• x = 7g - 9

Cheryl gets paid $8 per hour for her job at the record store and $15 for working late on Saturday. She made a total of $96 last week. Which equation models this situation?

• 96h + 15 = 8

• h/96 = 8

• 8h + 15 = 96

• 8h = 96

Solve:
8x + 4y = 16    ,  for     y

• y = -2x + 4

• y = 2x - 4

• y = 2x + 4

• y = -2x - 4

In the following equation, identify a constant and a coefficient.

-3 (4x - 6) + 2x = -7x + 9

• 3 is a constant and x is a coefficient

• -7 is the coefficient and 9 is the constant

• 2 is the constant and 9 is the coefficient

• x is the coefficient and 4 is the constant

3x + 2(4x - 4) = 3

• 4

• 3

• 2

• 1

After moving the constant to one side in the following equation, what would be the result: 70x + 48 = -22

• 70x = 70

• 70x = -70

• 70x + 70 = 0

After combining like terms in the following equation, what would be the result: 64x + 48 = -8x - 22 + 2x

• 64x + 48 = -10x -22

• 112 = -28x

• 64x + 48 = -6x - 22

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.