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+5rezolvati in q: 3(x+5)-69x-2)=4(x+2)-5(x-4).

Răspuns :

3(x+5)-6(9x-2)=4(x+2)-5(x-4)

3x+3×5-6×9x+6×2=4x+4×2-5x+5×4

3x+15-54x+12=4x+8-5x+20

-51x+27=-x+28

-51x=-x+28-27

-51x=-x+1

-51x+x=1

50x=1

[tex]x = \frac{1}{50} [/tex]