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(2*x)/4+2 = 5*x-43 // - 5*x-43
(2*x)/4-(5*x)+2+43 = 0
(2*x)/4-5*x+2+43 = 0
45-9/2*x = 0 // - 45
-9/2*x = -45 // : -9/2
x = -45/(-9/2)
x = 10
x = 10
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