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 = -3c - 5z - 7 for c in terms of z.
| -\(\frac{1}{7}\)z + \(\frac{2}{7}\) | |
| -2\(\frac{1}{2}\)z + 3 | |
| -\(\frac{1}{2}\)z - \(\frac{7}{12}\) | |
| 3z + 6 |