13
Question:
If $A\ \spadesuit\ B$ is defined as $A\ \spadesuit\ B = A + B + 4$, what is the value of $A$ for which $A\ \spadesuit\ 2 = 19$?
Answer:
Let's think step by step.

user
13
If $A\ \spadesuit\ B$ is defined as $A\ \spadesuit\ B = A + B + 4$, what is the value of $A$ for which $A\ \spadesuit\ 2 = 19$?
train