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 + 8a = 8a - 9x - 7 for a in terms of x.
| \(\frac{2}{5}\)x + 1\(\frac{1}{5}\) | |
| -11x - 5 | |
| 3\(\frac{2}{5}\)x + 1\(\frac{2}{5}\) | |
| 3\(\frac{2}{5}\)x - 1 |