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 9b - 4b = 2b + 5y - 7 for b in terms of y.
| \(\frac{1}{2}\)y + \(\frac{9}{10}\) | |
| -\(\frac{6}{13}\)y - \(\frac{6}{13}\) | |
| 1\(\frac{2}{7}\)y - 1 | |
| 1\(\frac{1}{10}\)y + \(\frac{9}{10}\) |