Question

What is the value of m?



12+(7+m)=30

Answer 1

the answer is 11

Explanation:

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Answer 2

Answer: 11

Explanation:

The given equation :
`12+(7+m)=30` (1)

Using Associative property of addition :

`a+(b +c)=(a+b)+c`

We have,

`12+(7+m)=(12+7)+m=19+m` (2)

From equation (2) and (1), we get

`19+m=30`

Using Subtraction property of equality, subtract 19 from both sides, we get

`m=30-19=11`

Hence, the value of m=11