Hey there! 

Firstly, we are going 
add 
 on each of the sides that we're working with. like ↓ 

This gives us 

 (if you are wondering how we got the out come of 

 it is because I 
added 
Now 
multiply 
 on each of your sides 
Cancel the first set and you will find the value of 

Good luck on your assignment and enjoy your day ~
