Equations and Inequalities Review

• x = 20

• x = 7

• x = 10

• x = 3

• x = 20

• x = 7

• x = 10

• x = 3

Write an equation for
 17 less than H equals 42

• 17-H=42
• H-17=42
• H+17=42
• 17+H=42

Judy is saving to buy a pair of shoes that cost $120. She has saved $30 and is going to save $25 a week. Which equation will show her how many weeks she must save?

• 120 = 25x + 30

• 120 = 55x

• 120 = 25x + 30x

• 25x = 120 + 30

• x ≥ 7

• x ≥ -7

• x ≤ 8

• x ≤ -7

• a = 28

• a = 112

• a = 7

• a = 67

• x = 15

• x = 3

• x = -15

• x = -3

WRITE AN EQUATION

Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

• 24-10=7x

• 24+7x=10

• 10+7x=24

• 10+x=14

• -1

• 5

• Divide both sides by 11

• Multiply both sides by 11

• Add 11 to both sides

• Subtract 11 from both sides