Question

solve for w in P=2w + 2l, if P=38 and l=12

Answer 1

you should take p and I into their places

Answer 2

substitute value of 'p' and the value of 'l'...
38 = 2w + 2 (12)
now solve for w...

Answer 3

P = 2w + 2l (when p = 38 and l = 12)
sub 38 in for p and 12 in for l
P = 2w + 2l
38 = 2w + 2(12)
can you work it out from here ?

Answer 4

it's a simple work you need to subtract 2(12) from both side of the equation

Answer 5

it will be like this
38 - 2(12) = 2w + 2(12) - 2(12)

Answer 6

W=7