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RS Aggarwal Solutions Class 7 Mathematics Solutions for Linear Equations in one variable Exercise 7B in Chapter 7 - Linear Equations in one variable
Question 1 Linear Equations in one variable Exercise 7B
Thrice a number when increased by 5 gives 44. Find the number.
Answer:
Solution:-
Let the required number be x.
Then,
= 3x + 5 = 44
Transposing 5 to RHS and it becomes -5.
= 3x = 44 - 5
= 3x = 39
Multiplying both side by (1/3)
= 3x × (1/3) = 39 × (1/3)
= x = 13
∴ the required number is 13
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