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