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RD Sharma Solutions Class 8 Mathematics Solutions for Linear Equation in One Variable Exercise 9.4 in Chapter 9 - Linear Equation in One Variable
Prev
Find a number whose double is 45 greater than its half.
Answer:
Let us consider the number as ‘x’
So,
2x – x/2 = 45
(4x-x)/2 = 45
By cross-multiplying we get,
3x = 90
x = 90/3
= 30
∴ The number is 30.
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