3/7 +х= 34/7

To solve the equation \( \frac{3}{7} + x = \frac{34}{7} \), you can isolate \( x \) by subtracting \( \frac{3}{7} \) from both sides:

\[ x = \frac{34}{7} - \frac{3}{7} \]

Since both fractions have the same denominator, you can subtract the numerators:

\[ x = \frac{34 - 3}{7} = \frac{31}{7} \]

So, the solution is:

\[ x = \frac{31}{7} \]