Answer:

Step-by-step explanation:
<u>Step 1: Set the second equation into the first
</u>




<u>Step 2: Solve the second equation
</u>


Answer: 
Answer:
a
Step-by-step explanation:
Answer:
g(-7)= -37
Step-by-step explanation:
g(y)= 7y + 12
plug in -7
g(-7)= 7(-7) + 12
simplify
g(-7)= -49 +12
g(-7)= -37