First you need to multiply by a factor that will givr you the same value in one of the x or y value. (6x-12y=24)1 +(-x-6y=4)-2 6x-12y=24 =2x+12y=-8 8x=16÷8 x=2 now that you have x, substitute x by 2 in one of the eqauations -2-6y=4 +2. +2 =-6y=6 ÷-6. ÷-6 y=-1