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 - 8c = -6c + 5z - 9 for c in terms of z.
| 4z + 4 | |
| \(\frac{1}{4}\)z - \(\frac{1}{4}\) | |
| \(\frac{5}{11}\)z + \(\frac{4}{11}\) | |
| \(\frac{13}{15}\)z - \(\frac{3}{5}\) |