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