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(1/5)*(x-(2*y)) = (3/4)*(y+2)+3 // - (3/4)*(y+2)+3
(1/5)*(x-(2*y))-((3/4)*(y+2))-3 = 0
(1/5)*(x-2*y)+(-3/4)*(y+2)-3 = 0
1/5*(x-2*y)-3/4*(y+2)-3 = 0
1/5*(x-2*y)-3/4*(y+2)-3 = 0
1/5*x-23/20*y-3-3/2 = 0
1/5*x-23/20*y-9/2 = 0
1/5*x-23/20*y-9/2 = 0
1/5*x-23/20*y-9/2 = 0 // + -23/20*y-9/2
1/5*x = -(-23/20*y-9/2) // : 1/5
x = (-(-23/20*y-9/2))/1/5
x = 5*(9/2-(-23/20*y))
x = 5*(9/2-(-23/20*y))
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