Question 1103318
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The solution by algebrahouse is a perfectly good formal solution.<br>
If you can and want to be a bit less formal, you might do something like this....<br>
(1) 3 bats and 5 gloves cost $235
(2) 2 bats and 6 gloves cost $210<br>
From (2), we can conclude that
(3) 1 bat and 3 gloves cost $105<br>
(Note I divided equation (2) by 2 to get equation (3).  The other tutor's solution would have been shorter and easier if he had done the same....)<br>
Now from (2) and (3) we can conclude that
(4) 3 bats and 9 gloves cost $315<br>
Now comparing the purchases in equations (1) and (4), we see that 4 gloves cost $80.  (The numbers of bats are the same in the two equations, so the difference in cost is because of the different numbers of gloves.)<br>
And since 4 gloves cost $80, one glove costs $20.