In the following equations, if ‘+’ is interchanged with ‘—’ and ‘6’ is interchanged with ‘7’, then which equation would be correct?
From the option A,
67 - 76 + 43 = 100
On the interchanging,
76 + 67 - 43 = 100
143 - 43 = 100
100 = 100
$$\therefore$$ The correct answer is option A.
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