To determine Mario’s present age, we can set up the equation based on the information given. Currently, Mario is \( x \) years old, and in 7 years, he will be \( x + 7 \) years old. According to the problem, in 7 years, he will be 19 years old. Therefore, we can write the equation:
\[ x + 7 = 19 \]
So, the correct response is:
x + 7 = 19