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 7c + 2c = c + 3z + 8 for c in terms of z.
| -\(\frac{8}{9}\)z + \(\frac{2}{3}\) | |
| \(\frac{1}{6}\)z + 1\(\frac{1}{3}\) | |
| 2z - 2 | |
| 4z - 4\(\frac{1}{2}\) |