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(5/6)*(x-42) = (1/8)*x-1 // - (1/8)*x-1
(5/6)*(x-42)-((1/8)*x)+1 = 0
(5/6)*(x-42)+(-1/8)*x+1 = 0
5/6*(x-42)-x/8+1 = 0
(5/6*8*(x-42))/8-x/8+(1*8)/8 = 0
5/6*8*(x-42)-x+1*8 = 0
17/3*x-280+8 = 0
17/3*x-272 = 0
(17/3*x-272)/8 = 0
(17/3*x-272)/8 = 0 // * 8
17/3*x-272 = 0
17/3*x-272 = 0 // + 272
17/3*x = 272 // : 17/3
x = 272/17/3
x = 48
x = 48
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