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