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 + 9b = 4b - 7x - 1 for b in terms of x.
| -2x - 3 | |
| 16x + 1 | |
| \(\frac{1}{2}\)x - 2 | |
| 4x - 2 |