Question 401·Medium·Advanced Math

The kinetic energy $K$ (in joules) of an object with mass $m$ (in kilograms) and speed $v$ (in meters per second) is given by

Object A has mass $8$ kilograms and positive speed $v$. Object B has mass $2$ kilograms and speed $v+3$ meters per second. The two objects have the same kinetic energy.

What is the value of $v$?