Seudónimo
Seudónimo
21-02-2016
Mathematics
contestada
Help me!
7 + x = 21
x = ?
Respuesta :
Аноним
Аноним
21-02-2016
Solve for x:-
7 + x = 21
x = ?
Inverse operation
21 - 7 = x
21 - 7 = 14
x ⇒ 14
Check:-
7 + x = 21
x ⇒ 14
7 + 14 = 21
Yes, correct!
x ⇒ 14
Answer Link
Аноним
Аноним
21-02-2016
The anawer should be 14 because 7+14=21
Answer Link
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