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(1/5)*(x+3) = 4*x-(5*(2-x))-7 // - 4*x-(5*(2-x))-7
(1/5)*(x+3)+5*(2-x)-(4*x)+7 = 0
(1/5)*(x+3)+5*(2-x)-4*x+7 = 0
1/5*(x+3)+5*(2-x)-4*x+7 = 0
1/5*(x+3)+5*(2-x)-4*x+7 = 0
7-24/5*x-4*x+53/5 = 0
7-44/5*x+53/5 = 0
88/5-44/5*x = 0
88/5-44/5*x = 0
88/5-44/5*x = 0 // - 88/5
-44/5*x = -88/5 // : -44/5
x = -88/5/(-44/5)
x = 2
x = 2
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