Question

Help me!

7 + x = 21

x = ?

Answer 1

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 2

The anawer should be 14 because 7+14=21