Question

{7x+10y=123; {4x-5x=6
Срочно​

Answer 1

Ответ:

1.{7х+10у=123

1.{7х+10у=1237х+10у-123=123-123

1.{7х+10у=1237х+10у-123=123-1237х+10у-123=0

1.{7х+10у=1237х+10у-123=123-1237х+10у-123=02.{4х-5х=6

1.{7х+10у=1237х+10у-123=123-1237х+10у-123=02.{4х-5х=6-х=6

1.{7х+10у=1237х+10у-123=123-1237х+10у-123=02.{4х-5х=6-х=6х=-6