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88.300+200x=79.900+900x
We move all terms to the left:
88.300+200x-(79.900+900x)=0
We add all the numbers together, and all the variables
200x-(900x+79.9)+88.300=0
We add all the numbers together, and all the variables
200x-(900x+79.9)+88.3=0
We get rid of parentheses
200x-900x-79.9+88.3=0
We add all the numbers together, and all the variables
-700x+8.4=0
We move all terms containing x to the left, all other terms to the right
-700x=-8.4
x=-8.4/-700
x=1.9090909090909/159.09090909091
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