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(1/2)*x-4 = 3-((1/3)*x) // - 3-((1/3)*x)
(1/2)*x+(1/3)*x-4-3 = 0
5/6*x-7 = 0 // + 7
5/6*x = 7 // : 5/6
x = 7/5/6
x = 42/5
x = 42/5
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