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 -9b + 2b = -8b - 3z - 5 for b in terms of z.
| -2\(\frac{1}{2}\)z + 1\(\frac{1}{2}\) | |
| -9z - 7 | |
| -7z - 7 | |
| 5z + 5 |