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4(k+2)+7=19
We move all terms to the left:
4(k+2)+7-(19)=0
We add all the numbers together, and all the variables
4(k+2)-12=0
We multiply parentheses
4k+8-12=0
We add all the numbers together, and all the variables
4k-4=0
We move all terms containing k to the left, all other terms to the right
4k=4
k=4/4
k=1
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