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2x+4+2x+4+x+x=64
We move all terms to the left:
2x+4+2x+4+x+x-(64)=0
We add all the numbers together, and all the variables
6x-56=0
We move all terms containing x to the left, all other terms to the right
6x=56
x=56/6
x=9+1/3
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