7th Math Unit 3 Review

 $6=\frac{a}{4}+2$  

• 16

• 15

• 14

 $\frac{m}{9}-1=-2$  

• 6

• 9

• -9

 $2x+1=15$  

• -7

• 7

• -6.5

• 6.5

 $-18=-3m$  

• 6

• -6

• 4

• -15

 $7k-14=28$  

• 6

• -6

• 18

• 8

 $10=\frac{s}{2}+7$  

• -6

• 6

• 3/2

• -3/2

Dexter's Gym charges a one-time registration fee of $40 and $20 each month to be a member at the gym. The total fee after x months is $340. Which equation models this situation?

• 40x + 20 = 340

• 20x + 40 = 340

• 20x - 40 = 340

• 20 + 340 = 40x

WRITE AN EQUATION

You bought a magazine for $5 and four erasers. You spent a total of $25. Write a 2-step equation that find the cost of each eraser?

• 5 + x = 25

• 5 + 4x = 25

• 5x + 4 = 25

• 25 - 5 = -4x

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63
• 7x = 63
• 7x - 35 = 63
• 35x + 7 = 63

Tags

CCSS.HSA.CED.A.3

Natalie is a softball coach. She has a pitching private lesson with Kasey. Kasey's mom pays Natalie $11 per hour plus a $6 tip. Write an equation that represents this scenario if the total cost was $39.

• 11x + 6 = 39
• 11x - 6 = 39
• 11 + 6x = 39
• 66x = 39

Tags

CCSS.HSA.CED.A.3