Răspuns :
[tex] - \frac{12}{10} + x = - \frac{18}{5} \\ - \frac{6}{5} + x = - \frac{18}{5} \\ x = \frac{ - 18}{5} + \frac{6}{5} \\ x = \frac{ - 18 + 6}{5} \\ x = - \frac{12}{5} [/tex]
-12/10 + x = - 18/5
x = - 18/5 + 12/10 (amplificam prima fractie cu 2)
x = - 36/10 + 12/10
x = - 24/10 (simplificam prin 2)
x = - 12/5
x = - 18/5 + 12/10 (amplificam prima fractie cu 2)
x = - 36/10 + 12/10
x = - 24/10 (simplificam prin 2)
x = - 12/5