2L + 2W = 36
W = 2L - 6
Plug this information in:
2L + 2(2L - 6) = 36
2L + 4L - 12 = 36
6L - 12 = 36
6L = 48
L = 8
Plug L in to solve for W:
W = 2(8) - 6
W = 16 - 6
W = 10
Answer:
x + 138 = x + 138
Step-by-step explanation: