You just need to plug those expressions inside the formula: it doesn't matter if they're expressions involving a variable instead of plain numbers: the formula becomes

If you want, you can simplify it by expanding the square and then multiply the two parenthesis:

Y-5=-2(x+4)
Y-5=-2x-8
Add 5 to both sides
Y=-2x-3
D
Answer:
ok dont get addicted
Step-by-step explanation:
Answer:
Each Person should owe 30$.
Step-by-step explanation:
84.99+5.10=90.
90/3 friends= 30$ each. There fore, the friend's calculation is not reasonable.
Answer:
c
Step-by-step explanation:
f(x) =10 (20)=200