найдите решение системы
5x-2y=-16
8x-7y=1

-2x+3y=10
4x-9y=-20

9x-2y=35
3x-4y=-5

5x-2y=-168x-7y=18х=1+7ух=(1+7у)/85*((1+7у)/8)-2у=-16(5+35у-16у)/8=-165+35у-16у =-16*819у=-128-519у=133у=7х=(1+7*7)/8=50/8=6,25-2x+3y=104x-9y=-20-2x+3y=10-2х=10-3у2х=3у-104x-9y=-204х=-20+9у2х=(9у-20)/23у-10= (9у-20)/22(3у-10)=9у-206у-20=9у-2020-20=9у-6у3у=0у=02х=3*0-102х=-10х=-59x-2y=353x-4y=-53х=-5+4у3х=4у-59x-2y=359х=35+2у3х=(35+2у)/34у-5= (35+2у)/33(4у-5)=35+2у12у-15=35+2у12у-2у=35+1510у=50у=53х=4*5-53х=20-53х=15х=5