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 -6c - 2c = 4c + 3z + 9 for c in terms of z.
| z + 4 | |
| -\(\frac{1}{2}\)z - \(\frac{9}{10}\) | |
| -\(\frac{8}{17}\)z + \(\frac{9}{17}\) | |
| z + \(\frac{1}{2}\) |