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(-7/2)*x-(4/5) = x-(7/5) // - x-(7/5)
(-7/2)*x-x-(4/5)+7/5 = 0
(-7/2)*x-x-4/5+7/5 = 0
3/5-9/2*x = 0 // - 3/5
-9/2*x = -3/5 // : -9/2
x = -3/5/(-9/2)
x = 2/15
x = 2/15
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