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