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