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 - 5b = 9b + 7y - 4 for b in terms of y.
| -2y + \(\frac{2}{3}\) | |
| \(\frac{3}{13}\)y - \(\frac{5}{13}\) | |
| -\(\frac{3}{10}\)y - \(\frac{3}{10}\) | |
| 7y + 5 |