Question

P=2l+2w w=7 p=42 what is l

Answer 1

p=98

Explanation:

p= 2(7)+2(42)

p= 14+84

p= 98

l= 14

Answer 2

l = 14

Explanation:

Given

p = 2l + 2w and w = 7, p = 42, substitute values into formula

42 = 2l + (2 × 7), that is

42 = 2l + 14 ( subtract 14 from both sides )

28 = 2l ( divide both sides by 2 )

14 = l or l = 14