Given: 
• x+y = 4 
• 2x+3y= 6. 
To find : 
• x and y. 
Solution: 
• x+ y = 4 
=> x = 4 - y 
put x in : 
• 2x + 3y = 6 
=> 2 (4-y)+3y = 6 
=> 8 - 2y +3y = 6 
=> y = 6 - 8 
=> y = -2 . 
Now, put y in x+y= 4. 
=> x+(-2)= 4 
=> x - 2 = 4 
=> x = 4+2 
=> x= 6. 
Hence, the value of x is 6 and y is -2.
I hope it will help you.
Regards.