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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