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प्रश्न
Pick out the solution from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation.
n + 12 = 20 (12, 8, 20, 0)
उत्तर
n + 12 = 20
n = 8 is a solution to the given equation because for n = 8,
n + 12 = 8 + 12 = 20 and hence, the equation is satisfied.
n = 12 is not a solution to the given equation because for n = 12,
n + 12 = 12 + 12 = 24 and not 20
n = 20 is not a solution to the given equation because for n = 20,
n + 12 = 20 + 12 = 32 and not 20
n = 0 is not a solution to the given equation because for n = 0,
n + 12 = 0 + 12 = 12 and not 20
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