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 = 7a - 7x + 8 for a in terms of x.
| -\(\frac{2}{7}\)x - \(\frac{3}{7}\) | |
| 1\(\frac{2}{3}\)x - 2\(\frac{2}{3}\) | |
| x + 4 | |
| 11x + 8 |