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 7a + 5a = -3a - y + 8 for a in terms of y.
| -\(\frac{3}{5}\)y + \(\frac{4}{5}\) | |
| \(\frac{1}{16}\)y - \(\frac{1}{8}\) | |
| \(\frac{3}{5}\)y - \(\frac{9}{10}\) | |
| \(\frac{3}{4}\)y - \(\frac{1}{4}\) |