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 - a = 4a + 3x - 9 for a in terms of x.
| \(\frac{9}{10}\)x - \(\frac{1}{10}\) | |
| 1\(\frac{1}{3}\)x - 3 | |
| -2x + 2 | |
| \(\frac{2}{7}\)x + \(\frac{5}{7}\) |