Two Step Equations and Variables on Both Sides

3y + 16 = 5y

• y = 8

• y = -8

• y = 1/8

• y = -1/8

9m + 14 = 2m

• m = -2

• m = 2

• m = 1/2

• m = -1/2

7p - 5 = 6p + 8

• p = 13

• p = -13

• p = 1/13

• p = - 1/13

11z - 5 = 9z + 7

• z= 6

• z = -6

• z = 1/6

• z =-1/6

3 + 12(3p + 2) = 9(p - 3)

• -20

• -13

• -2

• -18

-10x - 135 = 117 + 2x

• 25

• -18

• -21

• 22

-49 - x = -8x + 70

• 15

• 17

• 14

• 19

-7x - 36 = 20 -3x

• -12

• -14

• 15

• 8

The Frederick County Fair costs $15.00 to get in and $2.50 per ride, while the Montgomery County Fair costs $10.00 to get in and $3.00 per ride. Which equations could be used to determine how many rides you would need to go on for both fairs to be of equal value?

• 15x + 2.5 = 10x + 3

• 15 - 2.5x = 10 - 3x

• 15 + 2.5x = 10 + 3x

• 15 - 10 = 2.5x + 3x

WRITE AN EQUATION You bought a magazine for $5 and four erasers. You spent a total of $25. Write a 2-step equation to find the cost of one eraser.

• 5 + x = 25

• 5 + 4x = 25

• 5x = 25

• 25 - 5 = -4x

Tags

CCSS.7.EE.B.4A