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