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 8a + 9a = -3a + 4y - 5 for a in terms of y.
| -2y + 1\(\frac{2}{7}\) | |
| -\(\frac{5}{11}\)y - \(\frac{5}{11}\) | |
| -\(\frac{1}{2}\)y + \(\frac{1}{2}\) | |
| -1\(\frac{1}{3}\)y + 1 |