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 a - 6a = -3a - 7x - 1 for a in terms of x.
| 6x + 5 | |
| -\(\frac{1}{4}\)x - \(\frac{1}{4}\) | |
| \(\frac{1}{15}\)x + \(\frac{2}{15}\) | |
| 5x + 8 |