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The equation is followed by the values of the variable. Decide whether these values are the solution of that equation.9m = 81, m = 3, 9, -3 |
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Answer» 9m = 81 …(i) Substituting m = 3 in L.H.S. of equation (i), L.H.S. = 9 × (3) = 27 R.H.S. = 81 ∴ L.H.S. ≠ R.H.S. ∴ m = 3 is not the solution of the given equation. Substituting m = 9 in L.H.S. of equation (i), L.H.S. = 9 × (9) = 81 R.H.S. = 81 ∴ L.H.S. = R.H.S. ∴ m = 9 is the solution of the given equation. Substituting m = – 3 in L.H.S. of equation (i), L.H.S. = 9 × (- 3) = -27 R.H.S. = 81 ∴ L.H.S. ≠ R.H.S. ∴ m = – 3 is not the solution of the given equation. |
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