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 -c - 5c = 4c - 7y + 9 for c in terms of y.
| \(\frac{7}{16}\)y + \(\frac{5}{16}\) | |
| \(\frac{2}{3}\)y + \(\frac{1}{6}\) | |
| \(\frac{2}{5}\)y - 1\(\frac{4}{5}\) | |
| 5y - 2 |