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Rezolvati ecuatiile:
a)-(2x-3)x6=54-6x
b)-512:(9x-19)-4=120:2

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Răspuns :

a)-(2x-3)x6=54-6x

(-2X+3)×6=54-6X

-12X+18=54-6X

18-54=-6X+12X

-36=6X

X= - 6


b)-512:(9x-19)-4=120:2