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2.5(2k+1)-6.5=1.
We move all terms to the left:
2.5(2k+1)-6.5-(1.)=0
We add all the numbers together, and all the variables
2.5(2k+1)-6.5-1=0
We add all the numbers together, and all the variables
2.5(2k+1)-7.5=0
We multiply parentheses
5k+2.5-7.5=0
We add all the numbers together, and all the variables
5k-5=0
We move all terms containing k to the left, all other terms to the right
5k=5
k=5/5
k=1
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