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3-x+5 = (1/4)*(2*x-4) // - (1/4)*(2*x-4)
3-((1/4)*(2*x-4))-x+5 = 0
(-1/4)*(2*x-4)-x+3+5 = 0
3-1/4*(2*x-4)-x+5 = 0
3-1/4*(2*x-4)-x+5 = 0
1-3/2*x+3+5 = 0
4-3/2*x+5 = 0
9-3/2*x = 0
9-3/2*x = 0
9-3/2*x = 0 // - 9
-3/2*x = -9 // : -3/2
x = -9/(-3/2)
x = 6
x = 6
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