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x in (-oo:+oo)
r/j-8 = (-3*v)/j // - (-3*v)/j
r/j-((-3*v)/j)-8 = 0
r/j+3*j^-1*v-8 = 0
j^-1*r+3*j^-1*v-8 = 0
x należy do R
x in (-oo:+oo)
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