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(1/5)*(x-3) = 4*x-(2*(2-x))-7 // - 4*x-(2*(2-x))-7
(1/5)*(x-3)+2*(2-x)-(4*x)+7 = 0
(1/5)*(x-3)+2*(2-x)-4*x+7 = 0
1/5*(x-3)+2*(2-x)-4*x+7 = 0
1/5*(x-3)+2*(2-x)-4*x+7 = 0
17/5-9/5*x-4*x+7 = 0
17/5-29/5*x+7 = 0
52/5-29/5*x = 0
52/5-29/5*x = 0
52/5-29/5*x = 0 // - 52/5
-29/5*x = -52/5 // : -29/5
x = -52/5/(-29/5)
x = 52/29
x = 52/29
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