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