Question

Bună! Am nevoie de ajutor va rog..​

Answer 1

a)9x + 12 >^ 6x

9x - 6x >^ -12

3x >^ -12 | ÷3

x >^ - 4

x =[ -4 , + & )

b)3x - 10 <^ 8 x

3x - 8x <^ 10

-5 x <^ 10

x >^ - 2

x=[-2 , +&)

c) 21 + 2x > 9x

2x - 9x > -21

-7x > - 21

x < 3

x = (-& , 3 )

d) 12 - 4x <^ -x

-4 x + x <^ - 12

-3x <^ -12

x >^ 4

x = [4 , +& )

e) 9x > 4x - 25

9x -4x > -25

5x > - 25

x > -5

x = (-5 , +& )

Sper ca te ajuta .