(1)3х+у=6; (2)-3х+2у=4; (3)2,5х+у=5; (4)4х+3у=5; - вопрос №558847413623243255443553515624 от Diamond1111111 14.09.2020 17:56

Question

Математика: (1)3х+у=6; (2)-3х+2у=4; (3)2,5х+у=5; (4)4х+3у=5; (5)-3х+5у=15; (6)х+2у=-4.

Diamond1111111 · Answer

(1)3х+у=6у=-3х+6(2)-3х+2у=42у=3х+4у=1,5х+2(3)2.5х+у=5у=-2,5+5(4)4х+3у=53у=-4х+5у=-1 1/3х+1 2/3(5)-3х+5у=155у=3х+15у=3/5х+3(6)х+2у=-42у=-х-4у=-0,5х-2...