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2(5.21+x)+2x=104.85
We move all terms to the left:
2(5.21+x)+2x-(104.85)=0
We add all the numbers together, and all the variables
2(x+5.21)+2x-(104.85)=0
We add all the numbers together, and all the variables
2x+2(x+5.21)-104.85=0
We multiply parentheses
2x+2x+10.42-104.85=0
We add all the numbers together, and all the variables
4x-94.43=0
We move all terms containing x to the left, all other terms to the right
4x=94.43
x=94.43/4
x=23+1/1.6460905349794
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