Question

Como resolver 12x+7>3x-2
6-8x+3<-9x+7-x
-x-1+2x>9-7x+5
X-(7x-3)<7-4x-5

Answer 1

*12x+7>3x-2
9x>-9
x>-1

*6-8x+3<-9x+7-x
9-7<-10x+8x
2<-2x
1<-x

*-x-1+2x>9-7x+5
x-1 >14-7x
6x>15
x>15/6(sacas tercia)
y queda x>5/2

*X-(7x-3)<7-4x-5
x-7x+3<2-4x
1<2x
1/2<x