Question 368917

multiply second equation by 3 and add to first


2x -3y = 15 

3x + 3y = 18  ( multiply by 3)

now after addition  5x = 33  => x = 33/5

now put the value of x on any equation of above ,  

for example  in   x+y = 6 

=> 33/5 +y =6 

=> y = 6 - 33/5 

=> y = ( 30-33)/5 

=> y =  -3/5


thus, x = 33/5, y = -3/5