Equations with Variables Both Sides

• 1/2

• 4

• 3

• 1

Solve the equation.

7x - 9 - 3x = 4 ( x +3 ) +1 

• -2

• no solution

• 1

• infinite solutions

Solve the equation for the variable

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. Show your work

7 – 3r = r – 4(3 + r)

• 0

• no solution

• -3

• infinite solutions

• 6

• -6

• -1

• 3

Solve the equation for the variable

Solve the equation for the variable

Solve the equation for the variable

• 5

• 10

• 12

• 17

You rewrote the equation after multiplying the LCD 4 to equal 2x - 20 = 3x + 12 What is the value of x?

Mathematical Equivalence

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