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(x-0.8x)0.105=2101.05
We move all terms to the left:
(x-0.8x)0.105-(2101.05)=0
We add all the numbers together, and all the variables
(+0.2x)0.105-(2101.05)=0
We add all the numbers together, and all the variables
(+0.2x)0.105-2101.05=0
We multiply parentheses
0x-2101.05=0
We add all the numbers together, and all the variables
x-2101.05=0
We move all terms containing x to the left, all other terms to the right
x=2101.05
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