if 9 is added to 4 times a number, it becomes the same as when 8 is subtracted from 5 times the same number. Find the number?
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Answer :-
- The required number is 17.
Given :-
- If 9 is added to 4 times a number, it becomes the same as when 8 is subtracted from 5 times the same number.
To find :-
- The number.
Step-by-step explanation :-
Detailed explanation of the solution :-
Let's understand!
- It has been given in the question that if 9 is added to 4 times a number, it becomes the same as when 8 is subtracted from 5 times the same number. We have to find the number.
- We will make an equation using the following statements and then find out the number after solving it.
Calculations :-
Let the number be x.
Then 4 times the number = 4x.
Now let's add 9 to the expression.
We get 4x + 9.
Now, the other number will be x too, since it's given in the question that the number is same as the other.
Then 5 times the number = 5x.
Now let's subtract 8 from the expression.
We get 5x - 8.
In the question, it's given that both the expressions are equal.
So, we are going to construct an equation now.
We have :-
Transposing 9 from LHS to RHS, changing it's sign,
Transposing 5x from LHS to RHS, changing it's sign,
On simplifying,
Removing the negative sign,
The value of x = 17.
Thus, the required number is 17.
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