We are asked to find the size of angle $x$. We are given a straight line, and angles of $50^\circ$, $x$, and $35^\circ$ are formed on one side of the straight line.

1. Problem Description

We are asked to find the size of angle $x$. We are given a straight line, and angles of $50^\circ$, $x$, and $35^\circ$ are formed on one side of the straight line.

2. Solution Steps

The angles on one side of a straight line add up to $180^\circ$. Therefore, we have the equation

$50^\circ + x + 35^\circ = 180^\circ$.

Combine the constant terms:

$85^\circ + x = 180^\circ$.

Subtract $85^\circ$ from both sides of the equation:

$x = 180^\circ - 85^\circ$.

$x = 95^\circ$.

3. Final Answer

The size of angle $x$ is $95^\circ$.