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 9a - 4a = 6a + 9y - 1 for a in terms of y.
| 1\(\frac{1}{5}\)y - 1\(\frac{1}{5}\) | |
| 4\(\frac{1}{3}\)y - \(\frac{1}{3}\) | |
| -\(\frac{1}{2}\)y - \(\frac{2}{7}\) | |
| 2\(\frac{1}{8}\)y + \(\frac{3}{4}\) |