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 = -4a + 5y + 2 for a in terms of y.
| -y + \(\frac{7}{10}\) | |
| \(\frac{9}{13}\)y + \(\frac{2}{13}\) | |
| \(\frac{1}{3}\)y + 2\(\frac{1}{3}\) | |
| y + 1 |