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a fost răspuns

AJUTOR:
1) 3(2+X)=2X +8
2) 5X+1-2X=8-3X+2
3)100(3X-1)-250X=25X+25

Răspuns :

1) 6+3x=2x+8 X=2 2) 6x=9 X=1,5 3)300x-100-250x=25x+25 25x=125 X=5
Gabrielastefi
1)3(2+x)=2x+8
6+3x=2x+8
3x-2x=8-6
x=2
 2)5x+1-2x=8-3x+2
3x+3x=10-1
6x=9
x= 9 supra 6
simplificam cu 3 si da x=3 supra 2
3)100(3x-1)-250x=25x+25
300x-100-250x=25x+25
50x-100=25x+25
50x-25x=25+100
25x=125
x=5

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