August 2018 1 46 Report
Decir si es cierto o falso:
a) si a=b entonces a.c = b.c
b) si a=b, m=n entonces a+m = b+n
c) si a=b, m=n entonces a-m = b-n
d) si a=b, m=n entonces 5a-2m = 5b-2n

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