Hi, someone please explain to me how to this question as I am confuse for elimin

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secondary 3 | E Maths
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secondary 3 E Maths

Hi, someone please explain to me how to this question as I am confuse for elimination..

Date Posted: 7 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

The aim of this method is to add or subtract two equations in order to eliminate a common variable :-)

Date Posted: 7 years ago