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