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 9c + 7c = -5c + 5z - 5 for c in terms of z.
| -\(\frac{1}{7}\)z - \(\frac{5}{14}\) | |
| -1\(\frac{3}{7}\)z - \(\frac{4}{7}\) | |
| \(\frac{5}{6}\)z - 1 | |
| z + \(\frac{1}{2}\) |