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Sagot :

VINS

bonjour,

f (x) =  3 x /4 - 2

g (x) = 2 x + 5

f (x) = g (x)

3 x /4 - 2 = 2 x + 5

3 x  /4 - 8/4 = 8 x /4 + 20/4

3 x - 8 x = 20 + 8

-  5 x = 28

x = - 28/5

f ( x)  < g (x)  

3 x - 8 x < 20 + 8

- 5 x < 28

x >  - 28/ 5

S  ] - 28.5  : + ∞ [

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