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9-((2/3)*x) = 25/3 // - 25/3
9-((2/3)*x)-(25/3) = 0
(-2/3)*x-25/3+9 = 0
2/3-2/3*x = 0 // - 2/3
-2/3*x = -2/3 // : -2/3
x = -2/3/(-2/3)
x = 1
x = 1
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