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-4*x-(3/5) = (7/2)*x-(7/2) // - (7/2)*x-(7/2)
7/2-4*x-((7/2)*x)-(3/5) = 0
(-7/2)*x-4*x-3/5+7/2 = 0
29/10-15/2*x = 0 // - 29/10
-15/2*x = -29/10 // : -15/2
x = -29/10/(-15/2)
x = 29/75
x = 29/75
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