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afla termenul necunoscut? a+(8×5)=6×7+36:4

Răspuns :

a+40=42+9==>a+40=51==>a=51-40=11
a+40=6x7+36:4
a+40=42+36:4
a+40=42+9
a+40=51
51-40=a
11=a
v: 11+40=6x7+36:4
Sper ca e corect!