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2 = (4*x-9)/7+(x+2)/6 // - (4*x-9)/7+(x+2)/6
2-((4*x-9)/7)-((x+2)/6) = 0
(-1*(4*x-9))/7+(-1*(x+2))/6+2 = 0
(-1*6*(4*x-9))/(6*7)+(-1*7*(x+2))/(6*7)+(2*6*7)/(6*7) = 0
2*6*7-1*6*(4*x-9)-1*7*(x+2) = 0
40-31*x+84 = 0
124-31*x = 0
(124-31*x)/(6*7) = 0
(124-31*x)/(6*7) = 0 // * 6*7
124-31*x = 0
124-31*x = 0 // - 124
-31*x = -124 // : -31
x = -124/(-31)
x = 4
x = 4
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