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