Solve for Variables on Both Sides

Solve for x:

2x - 5 = 3x + 4

• x = 6

• x = -9

• x = -18/13

• x = 10/3

5w + 5 = 8w - 10

• -5

• -2

• 2

• 5

Solve the equation:
-8x - 8 + 3(x-2) = -3x + 2

• x = -8

• x = 8

• x = 2

• x = -2

Where is the first mistake?

• Subtracting 3 on both sides

• Distributing the 9

• Subtracting 9x on both sides

• Inequality error

Where is the first mistake?

• Distribution of the 5

• Distribution of the 10

• subtracting 60x from both sides

• dividing by -50

Tags

CCSS.HSA.REI.A.1

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

Solve for the variable.

22+2a=37+6+a

• a = 21

• a = 5

• a = -5

• a = -16

Solve for the variable.

9+2a=-3-4a

• a = -2

• a = 2

• a = 5

• a = -1

Tags

CCSS.7.EE.B.4A

Solve for the variable.

2a+4=7+a

• a = 1

• a = -3

• a = -1

• a = 3

Tags

CCSS.7.EE.B.4A

Solve for the variable.

-8-5a=12-9a

• a = 5

• a = 1

• a = -2

• a = -1