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 -4b + 7b = b + 8y + 4 for b in terms of y.
| -\(\frac{1}{5}\)y - \(\frac{4}{5}\) | |
| \(\frac{4}{9}\)y + \(\frac{7}{9}\) | |
| -\(\frac{7}{13}\)y - \(\frac{9}{13}\) | |
| 1\(\frac{3}{4}\)y - \(\frac{3}{4}\) |