3x+4Y=16 .(1)
5x-6y=33 .(2)
(1)*3+(2)*2:
19x=114
x=6
y=(5x-33)/6=-0.5
(2)4(x-y-1)=3(1-y)-2 ,4x-4y-4=1-3y,4x-5=y
x/2+y/3=2 ,3x+2y=12
3x+2(4x-5)=12
11x=22
x=2
y=3
3x+4Y=16 .(1)
5x-6y=33 .(2)
(1)*3+(2)*2:
19x=114
x=6
y=(5x-33)/6=-0.5
(2)4(x-y-1)=3(1-y)-2 ,4x-4y-4=1-3y,4x-5=y
x/2+y/3=2 ,3x+2y=12
3x+2(4x-5)=12
11x=22
x=2
y=3