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x+x-4/5=84
We move all terms to the left:
x+x-4/5-(84)=0
determiningTheFunctionDomain x+x-84-4/5=0
We add all the numbers together, and all the variables
2x-84-4/5=0
We multiply all the terms by the denominator
2x*5-4-84*5=0
We add all the numbers together, and all the variables
2x*5-424=0
Wy multiply elements
10x-424=0
We move all terms containing x to the left, all other terms to the right
10x=424
x=424/10
x=42+2/5
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