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