Question

The formula for the perimeter of a rectangle is P=2(l+w). Solve for l.

Answer 1

Answer:

l = $\frac{P-2w}{2}$

Step-by-step explanation:

Given

P = 2(l + w) ← distribute right side

P = 2l + 2w ( subtract 2w from both sides )

P - 2w = 2l ( isolate l by dividing both sides by 2 )

$\frac{P-2w}{2}$ = l

Answer 2

Answer:

l=‒2w+p/2

Step-by-step explanation:

p=2(L+w)

p=2L+2w(add ‒2w on both sides)

‒2w+p=2L+2w-2w

‒2w+p=2L

‒2w+p/2=2L/2

L=‒2w+p/2

i hope it helps you.