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