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120x - 8x = -15 - 55
112x = -70
x = -70/112
x = -35/56
x = -5/8
120x + 55 = 8x - 15
55 + 120x + -8x = -15 + 8x + -8x
55 + 112x = -15 + 8x + -8x
55 + 112x = -15 + 055 + 112x = -15
55 + -55 + 112x = -15 + -55
55 + -55 = 00 + 112x = -15 + -55112x = -15 + -55
-15 + -55 = -70112x = -70
=-0.625