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-5x+5= -30 , 7-x=9 ,-2x+18=0 , x-104= -35 -3x-48=0 va roggg​

Răspuns :

Dianageorgiana794

Răspuns:

-5x+5= -30

-5x=-30-5

x=35:5=>x=7

7-x=9

-x=9-7=>x= -2

-2x+18=0

-2x=-18=>x=18:2=>x=9

x-104= -35

x= -35+104=>x=69

-3x-48=0

-3x=48=>x= -48:3=>x=-16

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