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135+5000:(1455-455)+a×(40+4)=272

Răspuns :

Rodi11
135+5000:(1455-455)+a×(40+4)=272
135+5000:1000+a×44=272
135+5+a×44=272
140+a×44=272
a×44=272-140
a×44=132
a=132:44
a=3

PROBĂ

135+5000:(1455-455)+3×(40+4)=
=135+5000:1000+3×44=
=135+5+132=
=140+132=
=272 ( adevarat )
Hatty
135+5000:1000+a*44=272
135+5+44a=272
140+44a=272
44a=132
a=3

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