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2k+3(k+1)=-3
We move all terms to the left:
2k+3(k+1)-(-3)=0
We add all the numbers together, and all the variables
2k+3(k+1)+3=0
We multiply parentheses
2k+3k+3+3=0
We add all the numbers together, and all the variables
5k+6=0
We move all terms containing k to the left, all other terms to the right
5k=-6
k=-6/5
k=-1+1/5
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