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Help me with number 1. Thank you!

Help me with number 1. Thank you!-example-1

1 Answer

3 votes
4k - 3 = 2k + 5
+ 3 + 3
-------------------------
4k = 2k + 8
-2k - 2k
-------------------------
2k = 8
------ -----
2 2

k = 4

You can also do it this way:

4k - 3 = 2k + 5
- 4k - 4k
------------------------
-3 = -2k + 5
-5 - 5
------------------------
-8 = -2k
----- ------
-2 -2

4 = k

As you can see, you will get the same answer either way you figure it out :)
User Jsau
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