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Mylyalex2000
a fost răspuns

rezolvati urmatoarele inecuatii unde x este numar natural a 2(x-7)<14 b 3(1+x)<6 c 5(2+x)>15 d (x-4)6>0 e 64>8(5+x) f 21>7(x-1)

Răspuns :

a) 2x-14<14
2x<14+14
2x<28
x<14
x€{0,1,2,3.......13}
b)3+x<6
x<6-3
x<3
x€{0,1,2}
c)10+x>16
x>16-10
x>6
d)6x-24>0
6x>24
6x>24:6
x>4
e)64>40+8x
8x>64-40
8x>24
x>24:8
x>3
f)21>7x-7
7x>21+7
7x>28
x>28:7
x>4

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