Question

|x+1|=1/3
X=?

5p si coroana​

Answer 1

Răspuns:

    x ∈ {-$\frac{4}{3}$; -$\frac{2}{3}$}

Explicație pas cu pas:

    |x + 1| = $\frac{1}{3}$

    x + 1 = $\frac{1}{3}$

    x + 1 = -$\frac{1}{3}$

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    x + 1 = $\frac{1}{3}$

    x = $\frac{1}{3}$ - $\frac{1}{1}$

    x = $\frac{1}{3}-\frac{3}{3}$

    x = $-\frac{2}{3}$

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    x + 1 = -$\frac{1}{3}$

    x =  -$\frac{1}{3}$ - $\frac{1}{1}$

    x = -$\frac{1}{3}$ - $\frac{3}{3}$

    x = -$\frac{4}{3}$

    x ∈ {-$\frac{4}{3}$; -$\frac{2}{3}$}