Question

1) 4х+12х>7+13х.
2) (2-3х)+4(6+х)>1.
3) 7-4х<6х-23.
4) (4-5х)+2(3+х)<2.

Answer 1

1)x>2,3
2)x>-25
3)x>3
4)x>2,6

Answer 2

Ответ:

1)4x+12x>7+13x

16x>7+13x

16x-13x>7

3x>7|:3

x>7/3

2)(2-3x)+4(6+x)>1

2-3x+4(6+x)>1

2-3x+24+4x>1

26-3x+4x>1

26+x>1

x>1-26

x>-25

3)7-4x<6x-23

7-4x-6x<-23

-4x-6x<-23-7

-10x<-23-7

-10x<-30|:-10

x>3

4)(4-5x)+2(3+x)<2

4-5x+2(3+x)<2

4-5x+6+2x<2

10-5x+2x<2

10-3x<2

-3x<2-10

-3x<-8|:-3

x>8/3