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 -8b - 8b = 4b + 7x + 9 for b in terms of x.
| -4x + 1\(\frac{1}{4}\) | |
| -1\(\frac{1}{4}\)x - \(\frac{3}{4}\) | |
| 4\(\frac{1}{2}\)x - \(\frac{1}{2}\) | |
| \(\frac{1}{11}\)x - \(\frac{7}{11}\) |