Question

The perimeter of a square can be represented by the

expression 8x – 10 + 8x - 10. Write an expression to
represent the length of one side of the square.

Answer 1

Explanation:

perimeter of a square = 4 x length (L)

8x - 10 + 8x - 10 = 4L

rearrange the expression

8x + 8x - 10 - 10 = 4L

16x - 20 = 4L

divide both sides for L to stand alone

(16x - 20)/ 4 = 4L/4

(16x - 20)/4 = L