Solve question in photo. Mathematics help. last one

easeier than last y=2x+6 sub 2x+6 for y 3x-(2x+6)=6 3x-2x-6=6 x-6=6 add 6 x=12 sub y=2x+6 y=2(12)+6 y=24+6 y=30 x=12 y=30 (x,y) (12,30) soltion is (12,30)