Multiply the 2nd equation by -1 then add equations together -1<span>(2x+y=11<span>) </span></span>-2x - y = -11 (Adding will eliminate the Y) 3x = 12 ------------------------------------ Divide each side by 3 3x ÷ 2 = 12 ÷ 3 x = 4 ================================================================== To find Y substitute 4 for x in 5x+y=<span>23 </span><span><span>(5)(4)</span>+y</span>=<span>23 </span>y+20=<span>23 </span>----------------------------- Add -20 on each side <span>y+20+-20</span>=<span>23+-20 </span>y = 3
