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Stiind ca x este numar natural rezolvati ecuatiile : x+x=6 , x+2x=24 , 2x-x=5 , 2x+6=12 , (2x+1):3=7 , 10:(5x+2)=5

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Răspuns :

Olimpia123
6=3+3 X=3
x+2x=24 21+2=23 +X = 24
2x+6=12=2x6

Deeamaria94
x+x=6
2x=6/:2
x=3
x+2x=24
3x=24/:3
x=8
2x-x=5
1x=5/:1
x=5
2x+6=12
2x=12-6
2x=6/:2
x=3
(2x+1):3=7/·3
2x+1=21/-1
2x=20/:2
x=10

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