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 -9c - 4c = -8c - 9z + 4 for c in terms of z.
| -10z - 8 | |
| z + \(\frac{3}{4}\) | |
| 8z + 3 | |
| 5z - 4 |