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