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 - 7a = -4a - 8y - 2 for a in terms of y.
| -5\(\frac{1}{2}\)y - 4\(\frac{1}{2}\) | |
| -4\(\frac{1}{3}\)y + 3 | |
| -\(\frac{1}{6}\)y - \(\frac{1}{3}\) | |
| -\(\frac{1}{9}\)y + \(\frac{8}{9}\) |