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8*x-(8/7) = -8 // + 8
8*x-(8/7)+8 = 0
8*x-8/7+8 = 0
8*x+48/7 = 0 // - 48/7
8*x = -48/7 // : 8
x = -48/7/8
x = -6/7
x = -6/7
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