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 -7b + 4b = -6b - 8y + 9 for b in terms of y.
| 12y - 9 | |
| -\(\frac{5}{8}\)y - \(\frac{1}{4}\) | |
| -5y + 2\(\frac{1}{2}\) | |
| \(\frac{11}{13}\)y + \(\frac{3}{13}\) |