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_ ×43-43=43×43+12×43. Find the missing number. Please give the explanation.

Answers (1)

Assume k be the missing number. 

k×43-43=43×43+12×43

43(k-1)=43(43+12)

k-1 = 55

The missing number is k=56

Posted by

Ravindra Pindel

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