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 5a + 2a = 9a - y - 1 for a in terms of y.
| \(\frac{3}{5}\)y - \(\frac{3}{5}\) | |
| \(\frac{3}{4}\)y + \(\frac{1}{4}\) | |
| -\(\frac{10}{11}\)y + \(\frac{9}{11}\) | |
| 1\(\frac{2}{3}\)y - \(\frac{1}{3}\) |