Question

2x-3>1+3x,x apartine R
6-2x<4,x apartine Z
x/2+1>-7,x apartine Z
|x|<3, x apartine N
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Answer 1

Răspuns:

2x-3x > 3+1

-x > 4

x < -4 =>x € (-infinit, -4)

6-4 < 2x

2 < 2x

x > 1 =>x € (1, +infinit)

x/2 > -8

x > -16 =>x € (-16, +infinit)

x={0, 1, 2}