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RBSE Solutions for Class 7 Maths Chapter 14 Simple Equation In Text Exercise

March 27, 2019 by Fazal Leave a Comment

RBSE Solutions for Class 7 Maths Chapter 14 Simple Equation In Text Exercise is part of RBSE Solutions for Class 7 Maths. Here we have given Rajasthan Board RBSE Class 7 Maths Chapter 14 Simple Equation In Text Exercise.

Board RBSE
Textbook SIERT, Rajasthan
Class Class 7
Subject Maths
Chapter Chapter 14
Chapter Name Simple Equation
Exercise In Text Exercise
Number of Questions 2
Category RBSE Solutions

Rajasthan Board RBSE Class 7 Maths Chapter 14 Simple Equation In Text Exercise

Do and Learn

(Page 155)
Question
Fill in the (RBSESolutions.com) blanks
Balance method:
7x + 6 = 34
7x + 6 – …… = 34 – …….
7x = …..
x = …….

Transposition method:
7x + 6 = 34
7x = 34 -….
x = \(\frac { ……… }{ 7 }\)
x = 4
Verification (RBSESolutions.com) of answer
LHS = 7x +6
= 7 x ….. + 6
= …… + 6 = RHS
Solution:
Balance method
7x + 6 = 34
7x + 6 – 6 = 34 – 6
7x = 28
x = 4

Transposition method
7x + 6 = 34
7x = 34 – 6
x = \(\frac { 28 }{ 7 }\)
x = 4

Verification
LHS = 7x + 6
= 7 x 4 + 6
= 28 + 6 = 34 = RHS

RBSE Solutions

Question 2
Choose (RBSESolutions.com) Correct/Incorrect
(i) In 4x + x – 13 = 7 put x = 4 (Correct/Incorrect)
(ii) In 3x – 8 = 25 put x = 12 (Correct/Incorrect)
(iii) In 7x – 5 = 3x + 7 put x = 3 (Correct/Incorrect)
(iv) In 5x – 7 = 4x + 1 put x = 5 (Correct/Incorrect)
Solution:
(i) 4x + x – 13 = 7 put x = 4
L.H.S. = 4x + x – 13 = 5x – 13
= 5 x 4 – 13
= 20 – 13 = 7 = RHS
Hence 4x + x -13 = 7 put x = 4 is correct.

(ii) 3x – 8 = 25 put x = 12
LHS = 3 – 8
= 3 x 12 – 8
= 36 – 8 = 28 ≠ RHS
Hence 3x – 8 = 25 put x = 12 is in correct.

(iii) 7x – 5 = 3x +7 put x = 3
7x – 5 = 3x +7
7 x 3 – 5 = 3 x 3 + 7
21 – 5 = 9 + 7
16 = 16
LHS = RHS
Hence 7x – 5 = 3x +7 put x = 3 is correct.

(iv) 5x – 7 = 4x +1 put x = 5
LHS व RHS put x= 5
5 x 5 – 7 = 4 x 5 + 1
25 – 7 = 20 + 1
18 ≠ 21
LHS ≠ RHS
Hence 5x – 7 = 4x + 1 put x = 5 is correct.

RBSE Solutions

We hope the RBSE Solutions for Class 7 Maths Chapter 14 Simple Equation In Text Exercise will help you. If you have any query regarding Rajasthan Board RBSE Class 7 Maths Chapter 14 Simple Equation In Text Exercise, drop a comment below and we will get back to you at the earliest.

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