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(1/2)*(x-4)+5 = 3*x // - 3*x
(1/2)*(x-4)-(3*x)+5 = 0
(1/2)*(x-4)-3*x+5 = 0
1/2*(x-4)-3*x+5 = 0
1/2*(x-4)-3*x+5 = 0
5-5/2*x-2 = 0
3-5/2*x = 0
3-5/2*x = 0
3-5/2*x = 0 // - 3
-5/2*x = -3 // : -5/2
x = -3/(-5/2)
x = 6/5
x = 6/5
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