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 = 5c + z + 7 for c in terms of z.
| 2\(\frac{1}{2}\)z - 1 | |
| 1\(\frac{1}{10}\)z - \(\frac{1}{2}\) | |
| \(\frac{2}{3}\)z - 2\(\frac{1}{3}\) | |
| -8z + 7 |