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 - 9a = -6a + 2y - 5 for a in terms of y.
| 1\(\frac{1}{10}\)y + \(\frac{2}{5}\) | |
| \(\frac{3}{5}\)y + 1\(\frac{4}{5}\) | |
| -1\(\frac{1}{5}\)y + 1\(\frac{1}{5}\) | |
| \(\frac{11}{13}\)y - \(\frac{5}{13}\) |