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 -5b + 6b = -b - 9y - 7 for b in terms of y.
| -15y + 6 | |
| 3\(\frac{3}{4}\)y + 1\(\frac{3}{4}\) | |
| -\(\frac{8}{9}\)y - \(\frac{2}{9}\) | |
| 1\(\frac{3}{4}\)y - \(\frac{1}{2}\) |