solve by the elimination method 3.7x-12y=-186.29,11x+7.1y=87.8

please solve this
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1 Answer

line 1: 3.7x -12y =-186.29... or 37x -120y =-1862.9

line 2: 11x+7.1y  =87.8

"eliminashun" is the hard wae

37/11=3.363636363636363

line 2...multipli bi 3.36363  or 37/11

37x +23.8818y =295.324

line 1 - line2...(37x-37x) +(120y+23.8818y) =-1862.9 +295.324

143.8818y=-1567.575

y=-1567.575/143.8818

y=-10.894887

line 2...11x=87.8/7.1y=87.8/-77.3537=-1.1350459

x=-1.1350459/11

x=-0.103186
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