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(1/2)*x-x+1 = (3/5)*(x-(7/2))-1 // - (3/5)*(x-(7/2))-1
(1/2)*x-((3/5)*(x-(7/2)))-x+1+1 = 0
(-3/5)*(x-7/2)+(1/2)*x-x+1+1 = 0
x/2-3/5*(x-7/2)-x+1+1 = 0
(-3/5*2*(x-7/2))/2+x/2+(2*(-x))/2+(1*2)/2+(1*2)/2 = 0
x-3/5*2*(x-7/2)+2*(-x)+1*2+1*2 = 0
2-1/5*x-2*x+2+21/5 = 0
2-11/5*x+2+21/5 = 0
2-11/5*x+31/5 = 0
41/5-11/5*x = 0
(41/5-11/5*x)/2 = 0
(41/5-11/5*x)/2 = 0 // * 2
41/5-11/5*x = 0
41/5-11/5*x = 0 // - 41/5
-11/5*x = -41/5 // : -11/5
x = -41/5/(-11/5)
x = 41/11
x = 41/11
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