Question

qual e a equação x+x+8=54

Answer 1

$x+x+8=54\to \\\\ 2x=54-8\to \\\\ 2x=46\to \\\\ x= \frac{46}{2} \to \\\\ \boxed{x=23}$

Answer 2

x + x + 8 = 54
2x + 8 = 54
2x = 54 - 8
2x = 46
x = 46/2
x = 23