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(2/3)*(6-(12*x))+2*y = 8*y-9 // - 8*y-9
(2/3)*(6-(12*x))+2*y-(8*y)+9 = 0
(2/3)*(6-12*x)+2*y-8*y+9 = 0
2/3*(6-12*x)+2*y-8*y+9 = 0
2/3*(6-12*x)+2*y-8*y+9 = 0
2*y-8*x-8*y+4+9 = 0
4-8*x-6*y+9 = 0
13-8*x-6*y = 0
13-8*x-6*y = 0
13-8*x-6*y = 0 // - 13-6*y
-8*x = -(13-6*y) // : -8
x = (-(13-6*y))/(-8)
x = (13-6*y)/8
x = (13-6*y)/8
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