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Chapter 3: Q. 344 (page 405)

Twice the difference of a number and ten is fifty-four. Find the number.

Short Answer

Expert verified

Twice the difference of thirty-seven and ten is fifty-four.

Step by step solution

01

Step 1. Given information 

54 is equal to the Twice of difference of a number and10

02

Step 2. Solution 

Consider the number is n

Twice the difference of a number and 10is 54

2(n-10)=54n-10=542n-10=27n=37

The number is 37

Twice the difference of 37 and10 is54

03

Step 3. Verification 

Twice the difference of 37and 10is 54

2(37-10)=?542(27)=?5454=54

The left-hand side is equal to the right-hand side

so our answer is correct

the number is37

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