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 -3c - 8c = 9c - 7z - 2 for c in terms of z.
| \(\frac{1}{3}\)z + 2\(\frac{2}{3}\) | |
| -\(\frac{1}{12}\)z + \(\frac{1}{6}\) | |
| -\(\frac{3}{11}\)z - \(\frac{1}{11}\) | |
| z - 1 |