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8k-3=8(2k-1)
We move all terms to the left:
8k-3-(8(2k-1))=0
We calculate terms in parentheses: -(8(2k-1)), so:We get rid of parentheses
8(2k-1)
We multiply parentheses
16k-8
Back to the equation:
-(16k-8)
8k-16k+8-3=0
We add all the numbers together, and all the variables
-8k+5=0
We move all terms containing k to the left, all other terms to the right
-8k=-5
k=-5/-8
k=5/8
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