Verify by substitution that x = 8 is the root of (1/2)x + 7 = 11. – InterviewSolution

1.

Verify by substitution that x = 8 is the root of (1/2)x + 7 = 11.

Answer»

Given x = 8 is the root of 12x + 7 = 11.

Now, substituting x = 8 in place of ‘x’ in the given equation, we get

= 12(8) + 7 =11

= 4 + 7 = 11

= 11 = 11

Since, LHS = RHS

Hence, x = 8 is the root of 12x + 7 = 11.

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