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AJUTOOOOOOR!!!!!!!Se considera functia f:R-R,f(x)=2x+1.Rezolvati in R ecuatia 2-f(x+1)=3f(x).

Răspuns :

f:R->R,f(x)=2x+1
2-f(x+1)=3*f(x)
2-2(x+1)-1=3*(2x+1)
2-2x-2-1=6x+3
-2x-1=6x+3
-8x=4
x=-1/2