-20 + 9x = -17
-20 + 17 = -9x
-3 = -9x |: (-9)
0.333... = x
x = 0.333...
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it equals 13X.
The slope is 0.
It is 9x
9x + 9 = 135 9x = 126 x = 14
9x + 5 = 5x + 179x + 5 - 5x = 179x - 5x = 4x5-4x=1717-5=1212 divided by 4 = 3x=3