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