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 + 2y + 7 for b in terms of y.
| -1\(\frac{1}{4}\)y + \(\frac{1}{4}\) | |
| -1\(\frac{1}{3}\)y - 1\(\frac{1}{3}\) | |
| -3y + 9 | |
| \(\frac{3}{10}\)y + \(\frac{7}{10}\) |