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rezolvati ecuatiile 9x-8(1-3x)=25x-128


Răspuns :

9x-8(1-3x) = 25x - 128 
9x-8+24x = 25x-128
33x-8=25x-128
33x-25x= 8-128
8x = -120
x= -15
9x-8(1-3x)=25x-128
9x-8+24x=25x-128
33x-25x=-128+8
8x=-120
x=-15