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