Pick out the solution from the value given in the bracket next to the question. Show that the other values do not satisfy the equation.
n + 12 = 20 (12, 8, 20, 0)
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Answer:
n+12=20
Putting the given values in L.H.S.,
12 + 12 = 24, 8 + 12 = 20
∵ L.H.S. ≠ R.H.S. ∵ L.H.S. = R.H.S.
∴n=12 is not the solution. ∴n=8 is a solution.
20 + 12 = 32, 0 + 12 = 12
∵ L.H.S. ≠ R.H.S. ∵ L.H.S. ≠ R.H.S.
∴n=20 is not the solution. ∴n=0 is not the solution.
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