Variable $x_{69}$ cannot be equal to $0$ since division by zero is not defined. Multiply both sides of the equation by $13x_{69}$, the least common multiple of $x_{69},13$.
$$13\times 265=11x_{69}$$
Multiply $13$ and $265$ to get $3445$.
$$3445=11x_{69}$$
Swap sides so that all variable terms are on the left hand side.
