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2-((5*x)/3) = 9 // - 9
2-((5*x)/3)-9 = 0
(-5/3)*x-9+2 = 0
-5/3*x-7 = 0 // + 7
-5/3*x = 7 // : -5/3
x = 7/(-5/3)
x = -21/5
x = -21/5
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