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(10*x+4)/2 = (2*x)/4 // - (2*x)/4
(10*x+4)/2-((2*x)/4) = 0
(10*x+4)/2+(-1/2)*x = 0
(10*x+4)/2-x/2 = 0
10*x-x+4 = 0
9*x+4 = 0
(9*x+4)/2 = 0
(9*x+4)/2 = 0 // * 2
9*x+4 = 0
9*x+4 = 0 // - 4
9*x = -4 // : 9
x = -4/9
x = -4/9
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