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 + c = -6c - 8z - 3 for c in terms of z.
| -1\(\frac{2}{3}\)z + \(\frac{1}{9}\) | |
| -\(\frac{2}{13}\)z + \(\frac{1}{13}\) | |
| 3z + 1 | |
| -\(\frac{1}{7}\)z - \(\frac{6}{7}\) |