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(1/2)*(8*x-12) = (2/3)*(6*x-9) // - (2/3)*(6*x-9)
(1/2)*(8*x-12)-((2/3)*(6*x-9)) = 0
(1/2)*(8*x-12)+(-2/3)*(6*x-9) = 0
1/2*(8*x-12)-2/3*(6*x-9) = 0
1/2*(8*x-12)-2/3*(6*x-9) = 0
0 = 0
0 = 0
0 = 0
x należy do R
x in (-oo:+oo)
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