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 -6c - 4c = 4c + 2z - 5 for c in terms of z.
| -13z - 8 | |
| -\(\frac{1}{18}\)z + \(\frac{5}{18}\) | |
| -1\(\frac{4}{7}\)z - \(\frac{2}{7}\) | |
| -\(\frac{3}{5}\)z + \(\frac{1}{2}\) |