I think the answer's C: $7000/$8000
That's a surprisingly easy question for high school
Answer:
x = 2
Nothing more, nothing less
Answer:
The answer is C.3(x+3)/7
Step-by-step explanation:
Solve each system by substitution. Check your solution. Writing How do you know that substitution gives the answer to a system of equations? ... You Would solve the second equationfor y and then substitute back into the first equation.