Question

o dobro de um numero aumentado de15 e igual a 49

Answer 1

$2x+15=49\\ \\ 2x=49-15\\ \\ 2x=34\\ \\ x=\frac{34}{2}\\ \\ x=17$

Answer 2

2x+15=49
2x=49-15
2x=34
x=34/2
x=17