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