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प्रश्न
Verify by substitution that the root of 8 − 7y = 1 is y = 1
उत्तर
\[8 - 7y = 1 \]
Substituting y = 1 in the given equation:
\[L . H . S . \hspace{0.167em} : \]
\[8 - 7 \times 1\]
or, 8 - 7 = 1 = R . H . S .
\[L . H . S . = R . H . S . \]
Hence, y = 1 is the root of the given equation.
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