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 -4a - 7a = 8a - 7x - 4 for a in terms of x.
| 2\(\frac{1}{6}\)x - \(\frac{1}{3}\) | |
| x + \(\frac{1}{3}\) | |
| \(\frac{2}{7}\)x + \(\frac{3}{7}\) | |
| -\(\frac{2}{11}\)x - \(\frac{9}{11}\) |