Жүйе:х+4у=-2 6х-у=13

Question

х+4у=-2      

 6х-у=13

Answer 1

x=-2-4y

6*(-2-4y)-y=13, -12-24y-y=13, -25y=25, y=-1

сонда x=-2-4*(-1)=-2+4=2

жауабы: (2;-1)