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 -2a + 7a = 3a - 4x + 2 for a in terms of x.
| \(\frac{3}{5}\)x - \(\frac{7}{10}\) | |
| -\(\frac{3}{14}\)x + \(\frac{9}{14}\) | |
| x - \(\frac{1}{2}\) | |
| 2\(\frac{1}{5}\)x - \(\frac{2}{5}\) |