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Solve the Following Equations by Trial and Error Method: 3m - 14 = 4 - Mathematics

Sum

Solve the following equations by trial and error method:

3m - 14 = 4

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Solution

3m - 14 = 4

Putting m = 4,

(3 × 4) - 14 = -2 ≠ R.H.S.

Putting m = 5,

(3 × 5) - 14 = 1 ≠ R.H.S.

Putting m = 6,

(3 × 6) - 14 = 18 - 14 = 4 = R.H.S.

Hence, m = 6 is a solution of the given equation.

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APPEARS IN

NCERT Class 7 Maths
Chapter 4 Simple Equations
Exercise 4.1 | Q 3.2 | Page 81
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