The sum of 8 and 5 is equal to the difference of a number and 7

We have that for the Question "The sum of 8 and 5 is equal to the difference of a number and 7" it can be said that The value of x is

From the question we are told

The sum of 8 and 5 is equal to the difference of a number and 7

Generally the equation for the Statement  is mathematically given as

Therefore

The value of x is

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8+5 = x - 7

Explanation:

a number is X

sum means addition

difference means subtraction

To solve: You need to isolate x on one side of the equation (one side of the = sign). To do this, add 7 to both sides so you can move it from one side to the other:

8 + 5 = x - 7

+7            +7

As you can see, adding 7 will cancel out the - 7 on the right side, and move it to the left. Now the equation you are left with is

8 + 5 + 7 = x

Finally add the numbers together and you will get your value for x.

8 + 5 + 7 = 20

20 = x

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