Answer:
Just use calculators, the answer will be (x;y) =(2;4)
Explanation:
We have: 5x+2y=18 (1) and 2x+3y=16 (2)
From (1) we can make it into: x= (18-2y)/5 and replace into (2) we have:
2(18-2y)/5+3y=16 <=> 36-4y+15y=80 <=> 11y=44 <=> y=4
Then use y=4 for (1) or (2) we will find x=2
Final, the answer will be x=2 ; y=4