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 -8c + 8c = 2c - 6z - 9 for c in terms of z.
| 1\(\frac{2}{5}\)z + \(\frac{9}{10}\) | |
| -1\(\frac{1}{5}\)z + \(\frac{3}{5}\) | |
| 3\(\frac{2}{3}\)z - 1 | |
| 7z + 5 |