18 multiply bracket 7 18 multiply 7 plus minus 3 is equal to 18 by 18 multiply 7 + 18 multiply - 3 bracket plus minus 3 is equal to 18 multiply 7 + 18 multiply minus 30 minus 3 bracket
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Hey...... it is not tje question of science.
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Explanation:18*(7-3)=(18*7)+18*(-3)
18*4=126+(-54)
72=126-54
72=72Ans
Hence ,proved
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