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15-k=23-2k
We move all terms to the left:
15-k-(23-2k)=0
We add all the numbers together, and all the variables
-k-(-2k+23)+15=0
We add all the numbers together, and all the variables
-1k-(-2k+23)+15=0
We get rid of parentheses
-1k+2k-23+15=0
We add all the numbers together, and all the variables
k-8=0
We move all terms containing k to the left, all other terms to the right
k=8
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