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 + 7c = -9c - 6z - 5 for c in terms of z.
| -13z - 5 | |
| \(\frac{1}{2}\)z - \(\frac{1}{3}\) | |
| -\(\frac{1}{6}\)z - \(\frac{1}{2}\) | |
| -1\(\frac{2}{5}\)z - 1\(\frac{1}{5}\) |