Verify by substitution that x = 4 is the root of 3x – 5 = 7. – InterviewSolution

1.

Verify by substitution that x = 4 is the root of 3x – 5 = 7.

Answer»

Given x = 4 is the root of 3x – 5 = 7

Now, substituting x = 4 in place of ‘x’ in the given equation, we get

= 3(4) – 5 = 7

= 12 – 5 = 7

7 = 7

Since, LHS = RHS

Hence, x = 4 is the root of 3x – 5 = 7.

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