Solving Linear Equations with Unknowns on One and 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

The area of the parallelogram shown is 9 square inches. Solve the equation and the value of x Tip: type x = first

Mathematical Equivalence

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Tags

CCSS.7.EE.B.4A

Solve the following equation...

• x = 5

• x = -4

• x = 6

• x = -5

Solve the following equation...

• x = 6

• x = 5

• x = -6

• x = -5

Solve the following equation...

• x = 6

• x = 5.5

• x = 5

• x = 4.5

Solve the following equation...

• x = 9

• x = 5.5

• x = 5

• x = 4.5

Solve the following equation...

• x = 9

• x = 6

• x = 8

• x = 7

Solve the following equation...

• x = 3

• x = 4

• x = 6

• x = 5

Solve the following equation,
3x + 7 = 2x + 11 

• x = 18

• x = 0.8

• x = 4

• x = -4

Solve the following equation,
5x = 30

• x = 6

• x = 150

• x = -6

• x = -150

Tags

CCSS.6.EE.B.7