Question

Qual e o conjunto soluçao da equaçao 20x-13=20+9x

Answer 1

20x - 13 = 20 + 9x
20x - 9x = 20 + 13
11x = 33
x = $\frac{33}{11}$
$\boxed{x = 3}$

Answer 2

20x-13=20+9x
20x-9x=20+13
11x=33
x=33/11
x=3
Resposta:  3