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jolli1 [7]
4 years ago
15

Help me with number 1. Thank you!

Mathematics
1 answer:
Brums [2.3K]4 years ago
6 0
   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 :)
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