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[(x -8 )×8]:8+8=9,afla triplul egalitatii

Răspuns :

[(x-8)x8]:8=9-8
(x-8)x8=1x8
8x-64=8
8x=8+64
x=72:8
x=9

9x3=27
[(x-8)x8]:8+8=9
[(x-8)x8]:8=9-8
[(x-8)x8]:8=1
(x-8)x8=1x8
(x-8)x8=8
x-8=8:8
x-8=1
x=1+8
x=9
triplul egalitatii: 9x3=27