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x-2/5 = -(2*x)-3/4 // + -(2*x)-3/4
x+2*x-2/5-(-3/4) = 0
x+2*x-2/5+3/4 = 0
3*x+7/20 = 0 // - 7/20
3*x = -7/20 // : 3
x = -7/20/3
x = -7/60
x = -7/60
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