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1-((2/3)*x) = 9/5-((1/5)*x)+3/5 // - 9/5-((1/5)*x)+3/5
(1/5)*x-((2/3)*x)-(9/5)-(3/5)+1 = 0
(-2/3)*x+(1/5)*x-9/5-3/5+1 = 0
-7/15*x-7/5 = 0 // + 7/5
-7/15*x = 7/5 // : -7/15
x = 7/5/(-7/15)
x = -3
x = -3
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