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