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 - 9c = -c + 7z + 3 for c in terms of z.
| \(\frac{1}{2}\)z - 4 | |
| -\(\frac{4}{7}\)z - \(\frac{5}{14}\) | |
| 1\(\frac{1}{4}\)z - 1 | |
| 2\(\frac{2}{7}\)z + \(\frac{3}{7}\) |