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 - c = 6c - 4z + 8 for c in terms of z.
| -3z + 8 | |
| -17z + 1 | |
| -1\(\frac{2}{5}\)z - 1\(\frac{3}{5}\) | |
| \(\frac{1}{18}\)z - \(\frac{1}{2}\) |