Simplify 3/7x + 2/7x using properties of operations

To simplify the expression \( \frac{3}{7}x + \frac{2}{7}x \), you can combine the like terms.

Both terms have the same denominator, which makes it easy to add them:

\[ \frac{3}{7}x + \frac{2}{7}x = \left( \frac{3 + 2}{7} \right)x = \frac{5}{7}x \]

So, the simplified expression is \( \frac{5}{7}x \).

Among the options you provided, the correct simplified form is:

5/7x