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 - 6a = 9a - 2x + 7 for a in terms of x.
| -2\(\frac{1}{3}\)x - 1\(\frac{1}{6}\) | |
| \(\frac{1}{4}\)x + \(\frac{3}{4}\) | |
| 2\(\frac{2}{3}\)x - 1\(\frac{2}{3}\) | |
| -\(\frac{4}{13}\)x - \(\frac{7}{13}\) |