Solving Equations with Variables on Both Sides

6z = 49 - z

• 49

• -7

• 6

• 7

2a -9 = 5a

• 3

• -3

• 9

• 7

28 + 3r = 10r

• 4

• 7

• 20

• 28

-8y = -3y -15

• 3

• -3

• 5

• -5

8w - 8 = -4x + 16

• 8

• 16

• 24

• 2

7w + 5 = 3w - 15

• 5

• -2

• 2

• -5

• 1=x

• -6=3x-9

• 2x-6=5x-9

• 3=3x

Tags

CCSS.8.EE.C.7B

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

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Tags

CCSS.7.EE.B.4A

What is the first step you should take to solve this problem?

-3(x - 2) = -8 +9b

• add 8 to both sides

• subtract 9b from both sides

• Distribute -3 to the x and -2

• add 2 to both sides

Tags

CCSS.7.EE.B.4A

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

• 15 - 10 = 2.5x + 3x