Here 3X+4Y=7.........(1) 4x-y=3........(2) eq(1) * 1 --- 3x +4y =7. eq(2) * 4--- 16X -4y =12adding eq(1) with eq(2)................................................................19x=19=>x=19/19=1 ........from eq(1) 3x + 4y=7 =>3*1 + 4y=7 =>4y = 7-3=4 => y= 4/4=1 ..........
Your experience on this site will be improved by allowing cookies. Read Cookie Policy