Question 90007
2x+y = 3
x-2y = -1

use elemination method, we multiply equation 1 by 2

we get  4x+2Y  = 6

Add equation 2 and the last one

we get  5x  =  5

         x  =  1

Substitute x in to either equation 1 or 2 

we get   y  =  1