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