Question

the sum of two consecutive numbers is 21 . find the number..

Answer 1

Let the 2 consecutive number be x, x+1
x+x+1=21
2x=21-1
x=20/2
x=10
Hope it helped you

Answer 2

Here's your answer!!

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Let the first consecutive number be x

And other one be (x+1)

A/q

$= > x + x + 1 = 21$

$= > 2x + 1 = 21$

$= > 2x = 21 - 1$

$= > 2x = 20$

$= > x = \frac{20}{2}$

$= > x = 10$

Therefore,

The first number is = x= 10

And second number is (x+1)=(10+1)=11

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Hope it helps you!! :)