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