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 -2b - 7b = b + 4y - 9 for b in terms of y.
| y - 1\(\frac{1}{4}\) | |
| -3\(\frac{2}{3}\)y + 3 | |
| \(\frac{8}{9}\)y + \(\frac{2}{9}\) | |
| -\(\frac{3}{10}\)y - \(\frac{1}{5}\) |