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 + 8c = -c + 3z + 1 for c in terms of z.
| -\(\frac{1}{10}\)z + \(\frac{4}{5}\) | |
| z + \(\frac{1}{2}\) | |
| 5z - 1 | |
| 5z - 7 |