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 - 5y + 9 for a in terms of y.
| -\(\frac{6}{7}\)y + \(\frac{6}{7}\) | |
| -1\(\frac{3}{4}\)y + 2\(\frac{1}{4}\) | |
| y - \(\frac{8}{13}\) | |
| \(\frac{1}{2}\)y - 3 |