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 = -8c + z - 3 for c in terms of z.
| 3z - 3 | |
| -3\(\frac{1}{3}\)z - 1 | |
| 2\(\frac{1}{3}\)z - 1\(\frac{1}{3}\) | |
| 15z + 8 |