Unit 3 Review

• 6x - 5

• 10x - 5

• 5x

• 15x

Answer explanation

8x - 5 + 2x

8x + 2x - 5

10x - 5

• 6.5w - 3y

• 2.5w - 1wy

• 2.5w + 7wy

• 4.5wy

Answer explanation

2.5w - 3y + 4w

2.5w + 4w - 3y

6.5w - 3y

• x = 2

• x = -2

• x = 8

• x = -4

Answer explanation

2(x + 1) = -2

2x + 2 = -2

2x + 2 - 2= -2 -2

(2x )/2 = (-4)/2

x = -2

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5
• Subtract 5
• Multiply by 7
• Subtract 7

Solve for x:
8x - 10 = -34

• 4
• 3
• -3
• -24

Solve.   n - (-2) = -14

• -16
• 16
• 12
• -12

Solve for d:
-7(6 + d) = 49

• 13
• 1
• -1
• -13

Solve   -3x + 5 = -16

• 9
• 8
• -7
• 7

Solve  9 + 3x = 10

• 2/3
• 1/3
• -1/3
• 4

Solve the following equation for n:

8n = 16

• n=24

• n=32

• n=2

• n=8