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 = a - 6y - 2 for a in terms of y.
| -\(\frac{11}{16}\)y - \(\frac{9}{16}\) | |
| -\(\frac{1}{5}\)y + 1\(\frac{3}{5}\) | |
| y - 1 | |
| y + \(\frac{1}{5}\) |