Question

Me ajudem por favor nessas questões:
2/3 -5x +9/2 =12

2x -3x +5x =17

Answer 1

$a) \frac{2}{3} -5X+ \frac{9}{2} =12 \\ \frac{4}{6} - \frac{30X}{6} + \frac{27}{6} = \frac{72}{6} \\ 31-72=30X \\ -41=30X \\ X=- \frac{41}{30} \\ \\ b)2X-3X+5X=17 \\ 4X=17 \\ X= \frac{17}{4}$