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-((1/3)*x)-1/2 = -9/7 // + -9/7
-((1/3)*x)-1/2-(-9/7) = 0
(-1/3)*x-1/2+9/7 = 0
11/14-1/3*x = 0 // - 11/14
-1/3*x = -11/14 // : -1/3
x = -11/14/(-1/3)
x = 33/14
x = 33/14
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