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2/7(x-28)=-4
We move all terms to the left:
2/7(x-28)-(-4)=0
Domain of the equation: 7(x-28)!=0We add all the numbers together, and all the variables
x∈R
2/7(x-28)+4=0
We multiply all the terms by the denominator
4*7(x-28)+2=0
Wy multiply elements
28x(x+2=0
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