Question

Rezolvați ecuatia x/2-4x/3+7x/6=7

Answer 1

inmultim ecuatia cu 6
3x-8x+7x=42
2x=42, x=21

Answer 2

$\displaystyle \frac{x}{2} - \frac{4x}{3} + \frac{7x}{6} =7 \\ 3x-2 \cdot 4x+7x=6 \cdot 7 \\ 3x-8x+7x=42 \\ 2x=42 \Rightarrow x= \frac{42}{2} \Rightarrow \boxed{x=21}$