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 + 5c = -9c + 3z - 9 for c in terms of z.
| -2\(\frac{1}{2}\)z + 1 | |
| -2\(\frac{1}{7}\)z + \(\frac{3}{7}\) | |
| 1\(\frac{1}{4}\)z - \(\frac{1}{2}\) | |
| -\(\frac{1}{5}\)z - \(\frac{9}{10}\) |