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 - 7c = -2c - 2z - 9 for c in terms of z.
| z - \(\frac{8}{9}\) | |
| 5z - 9 | |
| -1\(\frac{5}{6}\)z - \(\frac{1}{6}\) | |
| -\(\frac{1}{2}\)z + 1\(\frac{1}{8}\) |