Question

Me ajudem nessas inadequações:
a)2+2x <(x-5)
-
b)X < 13 + x+2
--- --- --- -------
2 4 4
-
c)X+1 + x+1 < 2 (x-3)
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3 2

Answer 1

Ola Alice

a) 2 + 2x < x - 5

2x - x < -5 - 2
x < -7 

b)

x/2 < 13/4 + (x + 2)/4 

2x/4 < 13/4 (x + 2)/4

2x < 13 + x + 2

x < 15 

c)

(x + 1)/3 + (x + 1)/2 < 2x - 6

2*(x + 1)/6 + 3*(x + 1)/6 < (12x - 36)/6 

5*(x + 1) < 12x - 36

5x  + 5 < 12x - 36 

7x > 41

x > 41/7