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(7*(2*x+4))/2-((12*(4*x-3))/4) = 0
(7*(2*x+4))/2-3*(4*x-3) = 0
(7*(2*x+4))/2+(-3*2*(4*x-3))/2 = 0
7*(2*x+4)-3*2*(4*x-3) = 0
46-10*x = 0
(46-10*x)/2 = 0
(46-10*x)/2 = 0 // * 2
46-10*x = 0
46-10*x = 0 // - 46
-10*x = -46 // : -10
x = -46/(-10)
x = 23/5
x = 23/5
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