Solving Linear Equations without Brackets


Simple Equations I - Concepts
Class - 7th CBSE Subjects
 
 
Concept Explanation
 

Solving Linear Equations without Brackets

small Solve; for; x : frac{3x}{4} -frac{2x}{3}= 5

Sol: Let us first take LCM as 12

small frac{3 X 3x- 4 X 2x}{12} = 5

small frac{9x- 8x}{12} = 5

small frac{x}{12} = 5

x= 60

Sample Questions
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Question : 1

Solve :    12  +  x  =  30

Right Option : C
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Explanation
Question : 2

The solution of frac{x-5}{2}-frac{x-3}{5}=frac{1}{2}  is :

Right Option : C
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Explanation
Question : 3

In    frac {a}{8}+frac {a}{4}=6,  the value of a is ___________________

Right Option : C
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Explanation
 
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