Question 1084444
L = 4W-5 correct? Make sure you understand what I did. We are going to use this value for L next:
2L+2W = 150 substitute for L:
2(4W-5)+2W = 150 distribute the 2 over the values inside the parenthesis (Distributive Properties of Multiplication):
8W-10+2W = 150 Add W on left, add 10 on both sides and you get:
10W = 160 Divide both sides by 10
W = 16