Question

resolva as seguintes inequações em IR a x sobre 3 menos

Answer 1

A) x/3-x+1/2<1-x/4
4x-6(x+1)<3(1-x)
4x-6x-6<3-3x
-2x+3x<3+6
x<3+6
x<9

B) 2-3x>=x+14
-3x-x>=14-2
-4x>=12
-x>=12/4
-x>=3 (-1)
x<=-3

C) 2(x+3)>3(1-x)
2x+6>3-3x
2x+3x>3-6
5x>-3
x>-3/5

D) 6x+3<3x+18
6x-3x<18-3
3x<15
x<15/3
x<5