Question

The sum of a number and 21 equals 30. Find the number.​

Answer 1

Answer:

9

Step-by-step explanation:

30-21=9

Answer 2

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★ Given :

Sum of a number.

Let the number be 'x'

Sum of x and 21

They are equal to 30

★ To find :

Value of x

★ Method :

x + 21 = 30

x + 21 -21 = 30 - 21

x = 9

★ Answer :

The value of number is 9

★ To check whether the answer is correct or not.

★ 9 + 21 = 30

Hence, answer is correct.

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