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 -b - 9b = 7b + 6y - 9 for b in terms of y.
| -1\(\frac{7}{8}\)y + 1\(\frac{1}{8}\) | |
| -\(\frac{1}{8}\)y - \(\frac{1}{2}\) | |
| \(\frac{1}{6}\)y + \(\frac{2}{9}\) | |
| \(\frac{1}{2}\)y + \(\frac{1}{2}\) |