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 -2c + 7c = -c - 6y + 4 for c in terms of y.
| 13y - 4 | |
| \(\frac{1}{6}\)y + \(\frac{5}{6}\) | |
| -1\(\frac{3}{7}\)y + \(\frac{4}{7}\) | |
| -\(\frac{2}{13}\)y - \(\frac{1}{13}\) |