Question

The perimeter of a rectangle is 68 inches. The perimeter equals twice the length of L inches, plus twice the width of 9 inches.

Answer 1

p = 68

p = 2l + 2 * 9

SO

2l + 2* 9 = 68

2l + 18 = 68

2l = 68 -18

2l = 50

l = 50 / 2

l = 25

Answer 2

P=68

P=2L+2(9)

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Therefore:

2L+2(9)=68

2L+18=68

2L=68-18

2L=50

L=50/2

L=25

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So the length is equal to 25 inches.