Translate the sentence into an equation. The sum of 3 times a number and 7 is 19.
A3(n +
- = 19
B(3 + n ) + 7 = 19
C7n + 3 = 19
D3n + 7 = 19
A3(n +
B(3 + n ) + 7 = 19
C7n + 3 = 19
D3n + 7 = 19