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 + 8b = -9b + 7y + 4 for b in terms of y.
| -5y - 1\(\frac{2}{3}\) | |
| -\(\frac{1}{4}\)y + 1 | |
| 2\(\frac{1}{2}\)y - 2\(\frac{1}{2}\) | |
| -6y - 4 |