Answer:
Step-by-step explanation:
x + y + z = 180
w + z = 180
x + y + z = 180 (this is the first equation)
w + z = 180 (this is the second equation)
Now, rewrite the second equation as z = 180 - w and substitute that for z in the first equation:
x + y + (180 - w) = 180
x + y - w = 0
x + y = w(
Step-by-step explanation:
its 113 if you are doing this on moby max mostly or on a worksheet is 113
