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 4a - 6a = 5a + 3y + 4 for a in terms of y.
| -9y - 4 | |
| 1\(\frac{3}{4}\)y + 2\(\frac{1}{4}\) | |
| -\(\frac{7}{15}\)y + \(\frac{1}{5}\) | |
| -\(\frac{1}{7}\)y - 1\(\frac{2}{7}\) |