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 + 2c = -9c + 9z - 1 for c in terms of z.
| \(\frac{7}{18}\)z - \(\frac{1}{18}\) | |
| -\(\frac{3}{7}\)z + \(\frac{1}{7}\) | |
| -1\(\frac{2}{7}\)z - \(\frac{2}{7}\) | |
| -2\(\frac{1}{2}\)z + \(\frac{1}{2}\) |