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