The price of album y is $5.80. I solved the system of equations of B and C. Getting rid of the variable z, I was able to get rid of x next. Solving this system gave me $5.80 without having to substitute into the other equation.
Answer: A= (3,-3) . B(4,1). C= (1,0)
Step-by-step explanation:
Answer:
-50y+(-80)
Step-by-step explanation: