Answer:
5x-6
Step-by-step explanation:
f(x) = 2x + 3
g(x) = 3x - 9
f(x) + g(x) = 2x + 3 + 3x-9
= 5x-6
The answer is -4,0 4,8 because u would solve for one variable in one of the equations and then substitute the result into the other
Answer: c
Step-by-step explanation:
Use the app photomath from appstore
it really helped me alot
