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