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x in (-oo:+oo)
5*x-(2*(2*x-7)) = 2*(3*x-1)+7/2 // - 2*(3*x-1)+7/2
5*x-(2*(2*x-7))-(2*(3*x-1))-(7/2) = 0
5*x-2*(2*x-7)-2*(3*x-1)-7/2 = 0
(-2*2*(2*x-7))/2+(-2*2*(3*x-1))/2+(2*5*x)/2-7/2 = 0
2*5*x-2*2*(2*x-7)-2*2*(3*x-1)-7 = 0
10*x-20*x-7+32 = 0
32-10*x-7 = 0
25-10*x = 0
(25-10*x)/2 = 0
(25-10*x)/2 = 0 // * 2
25-10*x = 0
25-10*x = 0 // - 25
-10*x = -25 // : -10
x = -25/(-10)
x = 5/2
x = 5/2
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