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(3/2)*(x-3) = (4/5)*X-8 // - (4/5)*X-8
(3/2)*(x-3)-((4/5)*X)+8 = 0
(3/2)*(x-3)+(-4/5)*X+8 = 0
3/2*(x-3)+(-4*X)/5+8 = 0
(3/2*5*(x-3))/5+(-4*X)/5+(5*8)/5 = 0
3/2*5*(x-3)-4*X+5*8 = 0
15/2*x-4*X-45/2+40 = 0
15/2*x-4*X+35/2 = 0
(15/2*x-4*X+35/2)/5 = 0
(15/2*x-4*X+35/2)/5 = 0 // * 5
15/2*x-4*X+35/2 = 0
15/2*x-4*X+35/2 = 0 // - 35/2-4*X
15/2*x = -(35/2-4*X) // : 15/2
x = (-(35/2-4*X))/15/2
x = -2/15*(35/2-4*X)
x = -2/15*(35/2-4*X)
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