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9 = (8/5)*(3*x+5) // - (8/5)*(3*x+5)
9-((8/5)*(3*x+5)) = 0
(-8/5)*(3*x+5)+9 = 0
9-8/5*(3*x+5) = 0
9-8/5*(3*x+5) = 0
1-24/5*x = 0
1-24/5*x = 0
1-24/5*x = 0 // - 1
-24/5*x = -1 // : -24/5
x = -1/(-24/5)
x = 5/24
x = 5/24
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