Ответ:x= -28/5 y=-39/5
Объяснение:
4x-3y=1
3x-y=-9
-------------------------
9x-3y=-27
--------------------------
4x-9x-3y+3y=27+1 -5x=28 x=-28/5
-3*(28/5)-y=-9 -y= -9+(84/5) -y= (84-45)/5=39/5 y=-39/5
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Ответ:x= -28/5 y=-39/5
Объяснение:
4x-3y=1
3x-y=-9
-------------------------
9x-3y=-27
--------------------------
4x-9x-3y+3y=27+1 -5x=28 x=-28/5
--------------------------
-3*(28/5)-y=-9 -y= -9+(84/5) -y= (84-45)/5=39/5 y=-39/5