Solve the second equation for
, then substitute it into the first equation.


Answer:
{-5-2*x^2-(-15)=0}
Step-by-step explanation:
That's the answer i believe??
Answer: How many greeting cards he sells
Step-by-step explanation:
The cards are 5 dollars each. 1.99 for shipping is all the same. The only thing that changes is the amount that he sells. So the amount of Greeting cards sold is the dependent variable.
Answer:
49x-21y-6
Step-by-step explanation:
7(7x) 7(-3y) -6
49x-21y-6=0