<PRE><B>Question 1126915</B>
Taking what you posted at face value,  that is 6/7w-3, and setting  w=21  you should get  (6/7)*21 - 3 = 18 - 3 = {{{ highlight( 15 ) }}}&lt;br&gt;

Now, it is possible you intended something else, but 6/7w-3 =  (6/7)*w - 3     so if you did, you must use parenthesis to indicate that.   Remember PEMDAS.

[ Also  6/126 is not 21, it is 1/21 ]







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