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 + 2a = a + 7x + 6 for a in terms of x.
| -x - 1\(\frac{1}{5}\) | |
| \(\frac{3}{10}\)x + \(\frac{1}{5}\) | |
| 4x + 2 | |
| \(\frac{1}{7}\)x + \(\frac{4}{7}\) |