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x in (-oo:+oo)
(-2/3)*x-(3/8) = -((2/3)*x)-3/8 // + -((2/3)*x)-3/8
(-2/3)*x+(2/3)*x-(3/8)-(-3/8) = 0
(-2/3)*x+(2/3)*x-3/8+3/8 = 0
0 = 0
x naleu017Cy do R
x in (-oo:+oo)
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