Question

Resolver as Inequações:
a) 1x/3 - 2x < 3

b) 2x-1 > 6x+15

c) 4x+7 < 3x+8

Answer 1

a) 1x/3 - 2x < 3
MMC de 3 e 1 = 3
1x/3 -6x/3 < 3
-5x/3<3
-5x<3*3
-5x<9 * (-1)
5x>-9
x>-9/5

b) 2x-1 > 6x+15
2x-6x > 15+1
-4x>16 * (-1)
4x<-16
x<-16/4
x<-4

c) 4x+7 < 3x+8
4x-3x < 8-7
x<1