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 - c = -6c + 9z - 9 for c in terms of z.
| -\(\frac{3}{7}\)z + \(\frac{1}{7}\) | |
| 2\(\frac{1}{2}\)z - 2\(\frac{1}{4}\) | |
| z + \(\frac{2}{5}\) | |
| -1\(\frac{2}{11}\)z - \(\frac{2}{11}\) |