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Solve the Following Equations by Trial and Error Method: 5p + 2 = 17 - CBSE Class 7 - Mathematics

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Question

Solve the following equations by trial and error method:

5p + 2 = 17

Solution

5p + 2 = 17

Putting p = 1 in L.H.S.,

(5 × 1) + 2 = 7 ≠ R.H.S.

Putting p = 2 in L.H.S.,

(5 × 2) + 2 = 10 + 2 = 12 ≠ R.H.S.

Putting p = 3 in L.H.S.,

(5 × 3) + 2 = 17 = R.H.S.

Hence, p = 3 is a solution of the given equation.

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics for Class 7 (2018 to Current)
Chapter 4: Simple Equations
Ex. 4.10 | Q: 3.1 | Page no. 81
Solution Solve the Following Equations by Trial and Error Method: 5p + 2 = 17 Concept: Concep of Equation.
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