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