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4/5k+7=2/5k-3
We move all terms to the left:
4/5k+7-(2/5k-3)=0
Domain of the equation: 5k!=0
k!=0/5
k!=0
k∈R
Domain of the equation: 5k-3)!=0We get rid of parentheses
k∈R
4/5k-2/5k+3+7=0
We multiply all the terms by the denominator
3*5k+7*5k+4-2=0
We add all the numbers together, and all the variables
3*5k+7*5k+2=0
Wy multiply elements
15k+35k+2=0
We add all the numbers together, and all the variables
50k+2=0
We move all terms containing k to the left, all other terms to the right
50k=-2
k=-2/50
k=-1/25
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