Question

Rezolvati in N ecuatia:-2x+1>-7
DAU COROANA!!!​

Answer 1

-2x+1>-7

-2x>-7-1

-2x>-8

x>-8/-2

x> 4

x = 5, 6, 7, 8, .... ∞

Answer 2

Explicație pas cu pas:

-2x+1>-7

-2x>-7-1 trecem termenii fara x in partea dreapta

-2x>-8|•(-1)

2x<8

x<8:2

x<4

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-invinit ○ +infinit

4

S=(-infinit, 4)