When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve -9c + 7c = -5c + 2y - 9 for c in terms of y.
| y - \(\frac{3}{4}\) | |
| y - 3\(\frac{1}{2}\) | |
| y + 2\(\frac{2}{3}\) | |
| 1\(\frac{1}{4}\)y + 2\(\frac{1}{4}\) |