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 -7a - 7a = 6a - 2x - 7 for a in terms of x.
| -1\(\frac{1}{3}\)x - 1\(\frac{1}{6}\) | |
| 1\(\frac{1}{6}\)x + \(\frac{5}{6}\) | |
| -\(\frac{5}{13}\)x + \(\frac{7}{13}\) | |
| -3x - 4 |