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