Question

se 2x-5=9 entao 3x+2 e igual a?

Answer 1

2x=9+5
2x=14
x=14/2
x=7

3x+2
3.7+2
21+2=23

Answer 2

$2x-5=9\to ~~2x=9+5\to~~2x=14\to~~x= \dfrac{14}{2} \to ~~\boxed{x=7}$


Substituindo x pelo valor que encontramos acima;

$3x+2\to~~3.7+2\to ~~21+2\to~~\boxed{23}$