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(7*x-1)/4-((1/3)*(2*x-((1-x)/2))) = 19/3 // - 19/3
(7*x-1)/4-((1/3)*(2*x-((1-x)/2)))-(19/3) = 0
(7*x-1)/4+(-1/3)*(2*x-((1-x)/2))-19/3 = 0
(7*x-1)/4-1/3*((-1*(1-x))/2+2*x)-19/3 = 0
(3*(7*x-1))/(3*4)+(-1/3*3*4*((-1*(1-x))/2+2*x))/(3*4)+(-19*4)/(3*4) = 0
3*(7*x-1)-1/3*3*4*((-1*(1-x))/2+2*x)-19*4 = 0
11*x-76-1 = 0
11*x-77 = 0
(11*x-77)/(3*4) = 0
(11*x-77)/(3*4) = 0 // * 3*4
11*x-77 = 0
11*x-77 = 0 // + 77
11*x = 77 // : 11
x = 77/11
x = 7
x = 7
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