1) 3х>12+11х 2) 1-6х<10 3) 3+5х>1 4) 2х+7<4х-3 5) 8х>15-2х 6) 3-4х<19 Помогите решить...

Question

1) 3х>12+11х
2) 1-6х<10<br> 3) 3+5х>1
4) 2х+7<4х-3<br> 5) 8х>15-2х
6) 3-4х<19<br> Помогите решить неравенства

Answer 1

3x>12+11x
-8x>12
8x<-12<br>x<-12/8<br>x<-3/2<br>==========
1-6x<10<br>-6x<9<br>6x>-9
x>-9/6
x>-3/2
==========
3+5х>1
5x>-2
x> -2/5
===========
 2х+7<4х-3<br>-2x<-10<br>2x>10
x>5
=============
8х>15-2х
10x>15
x>15/10
x>3/2
==============
3-4х<19</span>
-4x<16<br>4x>-16
x>-4
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