Can someone tell me what's the difference between my answer and the answer key??

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junior college 1 | H2 Maths
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junior college 1 H2 Maths

Can someone tell me what's the difference between my answer and the answer key??? Like point out where I went wrong. Thank you so much!!!

Date Posted: 7 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 7 years ago

Jiayang

7 years ago

Careless

Erin

7 years ago

Thank you!!!

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

i think when u subbed the k in u missed out the minus sign

Date Posted: 7 years ago