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 2b - 6b = -8b - x + 7 for b in terms of x.
| -4x + 3 | |
| -9\(\frac{1}{2}\)x + 2\(\frac{1}{2}\) | |
| \(\frac{1}{2}\)x + \(\frac{7}{10}\) | |
| 2x + 3 |