Question

Va rog ajutatima.
Rezolvati inecuatiile:
a) x+7< 10
b)x+21<4×6
c)x+3>11
d)13-x>5

Answer 1

a = x=1,2
b = x=1,2
c = x=1,2,3,4,5,6,7
d = x=1,2,3,4,5,6,7

Answer 2

a) x+7<10
x<10-7
x<3
x={0,1,2}

b)x+21<4x6
x+21<24
x<24-21
x<3
x={0,1,2}

c)x+3>11
x>11-3
x>9
x={9,+infinit}

d)13-x>5
13-5>x
8>x
x>8
x={8,+infinit}