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 -4c + 2c = 8c + 2z + 8 for c in terms of z.
| 7z + 1 | |
| \(\frac{5}{18}\)z - \(\frac{5}{18}\) | |
| z - \(\frac{2}{3}\) | |
| -1\(\frac{4}{7}\)z - 1\(\frac{2}{7}\) |