Afla termenul necunoscut. C+4-8=21

Problema de clasa a doua .Ajutati-ma va rog

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Grade: Education Subject: matematica
Afla termenul necunoscut. C+4-8=21

Problema de clasa a doua .Ajutati-ma va rog
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Best Answer
(45)
C=21+8-4
c=25
25+4-8=21

(154)
C+4-8=21 =>
C+4-8=21 /+8 =>
C+4=29 /-4 =>
C=25

Sper ca te-am ajutat!