Question

1. Nine years ago. Nikita was 13 years old. How old is she today? ( write
the linear equation and solve​

Answer 1

Answer:

Given,

Nikita's age before 9 years = 13

Let her present age be x

so,

$x - 9 = 13 \\ x = 13 + 9 \\ x = 22$

Therefore, Nikita's present age is 22.

Answer 2

If the Nikita was 13 years old before 9 years so now she is 22 years old.

Because 13+9=22