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(3/4)*x+(1/3)*x-(1/2) = 2-x // - 2-x
(3/4)*x+(1/3)*x+x-(1/2)-2 = 0
(3/4)*x+(1/3)*x+x-1/2-2 = 0
25/12*x-5/2 = 0 // + 5/2
25/12*x = 5/2 // : 25/12
x = 5/2/25/12
x = 6/5
x = 6/5
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