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 3b + 2b = -9b - 3z - 5 for b in terms of z.
| 3z - 3\(\frac{1}{2}\) | |
| -\(\frac{5}{12}\)z - \(\frac{5}{12}\) | |
| \(\frac{2}{5}\)z + \(\frac{7}{10}\) | |
| \(\frac{3}{4}\)z + 1\(\frac{1}{4}\) |