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x in (-oo:+oo)
(1/2)*((3/5)*x-1) = x-5 // - x-5
(1/2)*((3/5)*x-1)-x+5 = 0
1/2*(3/5*x-1)-x+5 = 0
1/2*(3/5*x-1)-x+5 = 0
5-7/10*x-1/2 = 0
9/2-7/10*x = 0
9/2-7/10*x = 0
9/2-7/10*x = 0 // - 9/2
-7/10*x = -9/2 // : -7/10
x = -9/2/(-7/10)
x = 45/7
x = 45/7
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