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

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.

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