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Rezolvati in R ecuatiiile :
a) 3(9-2x)=3-2x
b) 5(4x+9)=11x-3
c) 27-14x= 8(9-3x)


Răspuns :

[tex]27 - 6x = 3 - 2x =\ \textgreater \ 24 = 4x =\ \textgreater \ x =6[/tex]

[tex]20x + 45 = 11x -3 =\ \textgreater \ 9x = -48 =\ \textgreater \ x = \frac{-48}{9} [/tex]

[tex]27 - 14x = 81 -24x =\ \textgreater \ 10x = 54 =\ \textgreater \ x=5,4[/tex]