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 -2a + a = -9a - 6y + 4 for a in terms of y.
| -y + \(\frac{4}{7}\) | |
| y + 1\(\frac{3}{4}\) | |
| \(\frac{4}{9}\)y + \(\frac{7}{9}\) | |
| -8y + 3 |