Equation:
(2w+2) + w + (2w+2) + w
Combine Like Terms:
6w+4=142 m (since that's our perimeter)
Subtract 4 from both sides:
6w=138
Divide 6 from both sides
w=23
To find the length... Plug in our width into our "length" equation
(2(23)+2)
46+2
l=48
Final Answer:
w=23
l=48
