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(3*x^1)/2-((4*x^1)/4) = 4 // - 4
(3*x^1)/2-((4*x^1)/4)-4 = 0
(3*x)/2-x-4 = 0
1/2*x-4 = 0 // + 4
1/2*x = 4 // : 1/2
x = 4/1/2
x = 8
x = 8
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