Question

解二元一次方程组｛5x-6y=15,{2/3x-y=0,{2m+3n=32,{2x+3y-1=x+6,{3x+5y=19

Answer 1

x=0.2,y=5

x=6,y=4

m=10,n=4

x=-5,y=4

x=3,y=2

x=31/9,y=34/9