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 -7b - 9b = 5b - 2z - 3 for b in terms of z.
| 2z - 1 | |
| 1\(\frac{1}{6}\)z + \(\frac{1}{3}\) | |
| -\(\frac{7}{12}\)z + \(\frac{1}{4}\) | |
| \(\frac{1}{2}\)z - 4\(\frac{1}{2}\) |