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x in (-oo:+oo)
x+(3*x)/8-3 = (11*x)/8-3 // - (11*x)/8-3
x+(3*x)/8-((11*x)/8)-3+3 = 0
x+(3*x)/8+(-11/8)*x-3+3 = 0
0 = 0
x naleu017Cy do R
x in (-oo:+oo)
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