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 -a + a = -9a + 5y + 1 for a in terms of y.
| 1\(\frac{4}{13}\)y + \(\frac{9}{13}\) | |
| \(\frac{1}{2}\)y + \(\frac{1}{8}\) | |
| \(\frac{5}{9}\)y + \(\frac{5}{9}\) | |
| -\(\frac{2}{5}\)y + \(\frac{4}{5}\) |