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 - 8c = -4c + 7z + 9 for c in terms of z.
| -\(\frac{3}{5}\)z + \(\frac{3}{5}\) | |
| 4\(\frac{1}{3}\)z + 2\(\frac{2}{3}\) | |
| 5z + 2\(\frac{2}{3}\) | |
| 5z + 3 |