Question

$- x - 3 = \frac{5}{2}$
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Answer 1

Răspuns:

$-x-3=\frac{5}{2},~-x=\frac{5}{2}+3,~-x=2\frac{1}{2}+3,~-x=5\frac{1}{2}~|*(-1), ~x=-5\frac{1}{2}.$

Explicație pas cu pas: