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(3*x)/(-8)-(4*x) = -1 // + 1
(3*x)/(-8)-(4*x)+1 = 0
(3*x)/(-8)-4*x+1 = 0
1-35/8*x = 0 // - 1
-35/8*x = -1 // : -35/8
x = -1/(-35/8)
x = 8/35
x = 8/35
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