Solving Equations with Variables on Both Sides

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

Solve the equation for the variable

5x - 14 = 8x + 4

• x = 6

• x = -6

• x = -18/13

• x = 10/3

14p - 8 = 22 + 20p

• -5

• 5

• 30

7x = 3x + 24

• 6

• 10

• 14

• 4

-8y = -3y -15

• 3

• -3

• 5

• -5

6x - 4 = 8x

• 2

• -2

• 3

• 0

What is the first step to solve this equation: -11 - 3x = 44 - 2x

• Add 3 to both sides

• Get the variable on one side

• Add 11 to both sides

• Add 2 on both sides.

10x + 9 = 4x - 9

• x = 0

• x = 3

• x = -3

• x = -18

Solve for f:
f - 4 = 6f + 26

• f = -5

• f = 5

• f = 6

• f = -6