3х+5у=16/*(-2)
2х+3у=9/*3
-6x-10y=-32
6x+9y=27
-y=-5/:(-1)
y=1
3х+5у=16/*(-3)
2х+3у=9/*5
-9x-15y=-48
10x+15y=45
x=-3
9х-7у=95/*(-4)
4х+у=34/*9
-36+28y=-380
36x+9y=306
37y=-74
y=-2
9х-7у=95
4х+у=34/*7
9x-7y=95
28x+7y=238
37x=333
x=9
3х-5у=23/*2
2х+3у=9/*(-3)
6x-10y=46
-6x-9y=-27
-19y=19/:(-19)
y=-1
3х-5у=23/*3
2х+3у=9/*5
9x-15y=69
10x+15y=45
19x=114/:19
x=6