183
punti
Livello 1
Devi ridurre i monomi simili liberando le parentesi.
98332
punti
Genius II
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$\left(\dfrac{3}{5}x+\dfrac{7}{3}y-5\right)+\left(-\dfrac{10}{9}y+3-\dfrac{7}{10}x\right)=$
$= \dfrac{3}{5}x+\dfrac{7}{3}y-5-\dfrac{10}{9}y+3-\dfrac{7}{10}x=$
$= \left(\dfrac{3}{5}-\dfrac{7}{10}\right)x + \left(\dfrac{7}{3}-\dfrac{10}{9}\right)y+(-5+3) =$
$= \left(\dfrac{6-7}{10}\right)x + \left(\dfrac{21-10}{9}\right)y+(-2) =$
$= -\dfrac{1}{10}x + \dfrac{11}{9}y-2$
59882
punti
Genius I