Answer:
x=8
Step-by-step explanation:
I think you mean find x, not m.
since angle DEG and angle GEF are a linear pair, they equal 180º.
18x-9 + 4x+13 = 180
22x + 4 = 180
subtract 4 from each side
22x = 176
divide each side by 22
14 1/8 feet by 18 3/8.
I took 1 5/8 feet and added it to both...
7:15=(7*3):(15*3)=21:45
7:15=(7*9):(15*9)=63:135
21:45 and 63:135