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 -8b - b = -9b + 3z - 7 for b in terms of z.
| 4z - 7 | |
| \(\frac{1}{2}\)z + \(\frac{5}{6}\) | |
| \(\frac{1}{2}\)z + \(\frac{4}{7}\) | |
| -\(\frac{4}{9}\)z + \(\frac{1}{9}\) |