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