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2/7x+25=45
We move all terms to the left:
2/7x+25-(45)=0
Domain of the equation: 7x!=0We add all the numbers together, and all the variables
x!=0/7
x!=0
x∈R
2/7x-20=0
We multiply all the terms by the denominator
-20*7x+2=0
Wy multiply elements
-140x+2=0
We move all terms containing x to the left, all other terms to the right
-140x=-2
x=-2/-140
x=1/70
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