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