Question

Resolva as seguintes inequações

a) 5.x - 25 _> 3.x+5
b) 3.x-2 < -7.x+98
c) 2.x/5+4<0
d)3.x/4 - 2 <_ - x/4 +1

Answer 1

A) 5x-25>3x+5
5x-3x > 5+25
2x > 30
x > 30/2
x> 15

B) 3x-2<-7x+98
3x+7x < 98+2
10x < 100
x< 100/10
x < 10