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3*x+10*x-(2/4)-(8/12) = x+13/4-(2/3) // - x+13/4-(2/3)
3*x+10*x-x-(2/4)-(8/12)-(13/4)+2/3 = 0
3*x+10*x-x-1/2-2/3-13/4+2/3 = 0
12*x-15/4 = 0 // + 15/4
12*x = 15/4 // : 12
x = 15/4/12
x = 5/16
x = 5/16
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