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 5a - 8a = -7a + 5y + 9 for a in terms of y.
| -1\(\frac{5}{7}\)y - 1\(\frac{1}{7}\) | |
| 1\(\frac{1}{12}\)y + \(\frac{3}{4}\) | |
| 1\(\frac{1}{2}\)y - \(\frac{1}{2}\) | |
| -1\(\frac{2}{11}\)y + \(\frac{5}{11}\) |