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