Answer:
Step-by-step explanation:
you do reverse so 1,721 - 999 = k
1,721 - 999 = 722
so k = 722
In order to get your answer you will have to subtract 999 on both sides and then you will get your answer.
[tex]999+k=1721[/tex]
[tex]-999 -999[/tex]
[tex]1721 - 999=722[/tex]
[tex]=722[/tex]
[tex]k=722[/tex]
Therefore your answer is "k = 722."
Hope this helps.
