1) |2x+1|<3 2)|1-2x|《5 3)|3x-2|>7 4)|4+3x|》2 5)|4x+3|<7 6)|4x+3|》5

Question

1) |2x+1|<3 <br> 2)|1-2x|《5
3)|3x-2|>7
4)|4+3x|》2
5)|4x+3|<7<br> 6)|4x+3|》5

Answer 1

1) -3<2х+1<3; -3-1<2х<3-1; -4<2х<2;<br>-2<х<1;<br>2) -5<=1-2х<=5; -5-1<=-2х<=5-1;<br>-6<=-2х<=4; -3<=-х<=2;<br>-2<=х<=3;<br>3) -7>3х-2>7; -7+2>3х>7+2;
-5>3х>9; -5/3>х>3; -1 2/3>х>3;
4) -2>=4+3х>=2; -2-4>=3х>=2-4;
-6>=3х>=-2; -2>=х>=-2/3;
5) -7<4х+3<7; -7-3<4х<7-3;<br>-10<4х<4; -10/4<х<1;<br>-2,5<х<1;<br>6) -5>=4х+3>=5; -5-3>=4х>=5-3;
-8>=4х>=2; -2>=х>=2/4;
-2>=х>=0,5