Answer:
Step-by-step explanation:
commutative property of addition : x + y = y + x
example : 2+3 =5 and 3+2 =5 then 2+3=3+2
associative property of addition
x + y + z = (x + y) + z = x + (y + z)
example: 2+3+4 = (2+3)+4 = 5 + 4 =9
2+3+4 = 2+(3+4) = 2 + 7 = 9
first cable- 59ft
second cable-41 ft
so you have x+18 which is the first cable and x which is the second cable
x+18+x=100
2x+18=100
2x=82
x=41
plug in x
