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