Practicing Variables on Both Sides

Solve: 2x - 8 = 16

• x = 12

• x = 6

• x = -12

• x = 4

Tags

CCSS.7.EE.B.4A

Solve: 3x = 15 - 2x

• x = 9

• x = 3

• x = -3

• x = 6

-4x = 8x + 24

• x = -6

• x = 4

• x = 6

• x = -2

What is the value of 'x' if 3x + 2 = 2x - 8

• x = -10

• x = 10

• x = -2

• x = 2

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.7B

Mathematical Equivalence

ON

Solve the equation for the variable

• 4

• -10

• 1

• -1

• 6

• -6

• -1

• 3

Describe what was done in each solving step!

• Subtract 4x from both sides

• Step 3

• Combine Like Terms

• Step 2

• Distribute

• Step 1

The square and equilateral triangle below have the same perimeter. Find the value of x. Then, find the perimeter of each shape. Equation:​ (a)   X = ​ (b)   Perimeter: ​ (c)  

• 2

• 36

• 5

• 42