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2/5+x=128
We move all terms to the left:
2/5+x-(128)=0
determiningTheFunctionDomain x-128+2/5=0
We multiply all the terms by the denominator
x*5+2-128*5=0
We add all the numbers together, and all the variables
x*5-638=0
Wy multiply elements
5x-638=0
We move all terms containing x to the left, all other terms to the right
5x=638
x=638/5
x=127+3/5
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