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 + 9a = 7a + 8y - 2 for a in terms of y.
| \(\frac{1}{16}\)y + \(\frac{1}{8}\) | |
| 2\(\frac{1}{7}\)y - \(\frac{2}{7}\) | |
| 2\(\frac{1}{2}\)y - 1\(\frac{1}{2}\) | |
| -11y - 1 |