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 + 4a = -5a + 9x + 7 for a in terms of x.
| \(\frac{1}{2}\)x + \(\frac{7}{10}\) | |
| 1\(\frac{3}{8}\)x - \(\frac{7}{8}\) | |
| -x - 8 | |
| 2x - 2\(\frac{1}{3}\) |