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k/30=7.5
We move all terms to the left:
k/30-(7.5)=0
We add all the numbers together, and all the variables
k/30-7.5=0
We multiply all the terms by the denominator
k-(7.5)*30=0
We add all the numbers together, and all the variables
k-225=0
We move all terms containing k to the left, all other terms to the right
k=225
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