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 + 3a = -a - 7y - 2 for a in terms of y.
| -11y - 8 | |
| 4\(\frac{1}{2}\)y - 4\(\frac{1}{2}\) | |
| 10y + 2 | |
| -1\(\frac{2}{3}\)y - \(\frac{1}{2}\) |