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 - c = c - 5z - 4 for c in terms of z.
| \(\frac{2}{5}\)z + \(\frac{2}{5}\) | |
| -\(\frac{4}{7}\)z - 1 | |
| 1\(\frac{7}{10}\)z - \(\frac{1}{5}\) | |
| 1\(\frac{1}{6}\)z + 1\(\frac{1}{2}\) |