Question

a) x+11>7; b) x-3<1;
c) 7-x<4;
d)2x<-8
e) -x<6;
f) -x2-2:
g) -x<0;
h)-x>0 ; am nevoie urgent..dau coroană​

Answer 1

Răspuns:

a) x+11>7

x>7-11

x>-4

x={-3,-2,-1,0,1,.......}

b) x-3<1

x<1+3

x<4

x={3,2,1,0,-1,-2.....}

c) 7-x<4

-x<4-7

-x<-3 | •(-1)

x>3

x={4,5,6,7,8,9......}

d) 2x<-8

x< -8:2

x<-4

x={-5,-6,-7....}

e) -x<6 | •(-1)

x>-6

x={-5,-4,-3.....}

f) nu înțeleg

g) -x<0 | •(-1)

x>0

x={1,2,3,4......}

h) -x>0 | •(-1)

x<0

x={-1,-2,-3,-4.....}