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 - 9b = -6b - 4y + 9 for b in terms of y.
| -5y - 9 | |
| \(\frac{1}{2}\)y + \(\frac{5}{8}\) | |
| -\(\frac{1}{5}\)y + 1\(\frac{2}{5}\) | |
| -3y + 1\(\frac{3}{5}\) |