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Matei46
a fost răspuns

a)457-x =237-123 b) 1275+x =2357-103

Răspuns :

Raducustoica1
457-x=114
457-114 = x
343 = x

1275+x = 2254
x = 2254-1275
x = 979
a)457-×=237-123
457-x=114
x=457-114
x=443
b)1275+x=2357-103
1275+x=2254/-1275
1275+x=979
x=1265-979
x=286

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