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2/5(3k+7)=-5
We move all terms to the left:
2/5(3k+7)-(-5)=0
Domain of the equation: 5(3k+7)!=0We add all the numbers together, and all the variables
k∈R
2/5(3k+7)+5=0
We multiply all the terms by the denominator
5*5(3k+7)+2=0
Wy multiply elements
25k(3+2=0
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