Question

write an equation. the width of a rectangle is 9 inches less that the length. the perimeter is 86 inches.

Answer 1

eqauation is
L-x
W-9-x
eqaution- 9-x+x=86?

Answer 2

or 2x-9=86

Answer 3

Let x be the length.
width = x – 9
Formula of a perimeter: 2l + 2w = P
So, the formula is 2(x)+2(x-9) = 86

Answer 4

Right? I'm not sure.

Answer 5

Solving:
2x + 2(x-9) = 86
2x + 2x - 18 = 86
4x = 86 +18
4x = 104
x = 26

Answer 6

Substitute:
2(26) + 2(26-9) = 86
52 + 34 = 86
86 = 86