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Calculati:

[tex]|\frac{3x+1}{2}| =7[/tex]

Răspuns :

Jsksksksk

[tex] | \frac{3x + 1}{2} | = 7[/tex]

[tex] \frac{ |3x + 1| }{ |2| } = 7[/tex]

[tex] \frac{ |3x + 1| }{2} = 7[/tex]

[tex] |3x + 1| = 14[/tex]

[tex]3x + 1 = 14[/tex]

3x+1=-14

[tex]x1 = - 5 \: si \: x2 = \frac{13}{3} [/tex]

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