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 5b + 4b = 3b + 6y + 9 for b in terms of y.
| y + 4\(\frac{1}{2}\) | |
| \(\frac{1}{2}\)y - 1\(\frac{1}{4}\) | |
| -1\(\frac{4}{7}\)y - \(\frac{5}{7}\) | |
| \(\frac{4}{11}\)y - \(\frac{2}{11}\) |