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 + 8b = -7b + 9x + 7 for b in terms of x.
| \(\frac{1}{2}\)x + 2\(\frac{1}{2}\) | |
| 1\(\frac{2}{5}\)x - \(\frac{1}{2}\) | |
| \(\frac{1}{10}\)x + \(\frac{7}{10}\) | |
| -6x - 1 |