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