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