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 + 6c = -5c + z - 9 for c in terms of z.
| z - 2\(\frac{2}{3}\) | |
| -15z - 6 | |
| z - 6 | |
| -\(\frac{5}{14}\)z - \(\frac{9}{14}\) |