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 - 7c = -8c + 8z - 7 for c in terms of z.
| 3\(\frac{2}{3}\)z - 1\(\frac{1}{3}\) | |
| \(\frac{1}{4}\)z + \(\frac{1}{2}\) | |
| 2\(\frac{1}{2}\)z - 1\(\frac{1}{6}\) | |
| 16z - 9 |