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Anaelena191
a fost răspuns

1.afla termenul necunoscut:

700-a+12(12+13)=93

23-c(12+41)=56

iar 123+a=143


cum sa fac?

Răspuns :

Doinasilistraru
700-a+12(12+13)=93
700-a+12*25=93
700-a+300=93
-a=93-700-300
-a=-607-300
-a=-907
a=907
23-c(12+41)=56
23-c*53=56
-c=56/53-23
-c=-22
c=22
123+a=143
a=143-123
a=20
Marymargaret23
700-a+144+156=93
a=700+144+156-93
a=907
23-12c-41c=56
29c=23-56
29c=33
c=33/29
123+a=143
a=143-123
a=20

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