Question

x-9<8x+5

 

4(X-11)-5(2x-7)>или=0

 

дробь x/3+9<или=х

 

 

срочно плииз!

Answer 1

x-9<8x+5

x-8x<5+9

-7x<14

x>-2

 

4(X-11)-5(2x-7)>=0

4x-44-10x+35>=0

-6x>=9

x<=-1.5

 

 x/3+9<=х

x/3-x<=-9

x/3-3x/3<=-9

-2x/3<=-9

x>=13.5