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 - a = -5a - 7x - 7 for a in terms of x.
| \(\frac{2}{5}\)x + \(\frac{4}{5}\) | |
| -3x - 7 | |
| -1\(\frac{1}{2}\)x - 1\(\frac{3}{4}\) | |
| -\(\frac{1}{10}\)x + \(\frac{1}{5}\) |