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 -5c + 2c = -2c - 7y - 9 for c in terms of y.
| -\(\frac{1}{2}\)y - 2\(\frac{1}{2}\) | |
| \(\frac{1}{4}\)y + \(\frac{1}{4}\) | |
| 3y + 3 | |
| -\(\frac{3}{10}\)y + \(\frac{1}{10}\) |