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2511400=1818600+2.1x-x
We move all terms to the left:
2511400-(1818600+2.1x-x)=0
We add all the numbers together, and all the variables
-(1.1x+1818600)+2511400=0
We get rid of parentheses
-1.1x-1818600+2511400=0
We add all the numbers together, and all the variables
-1.1x+692800=0
We move all terms containing x to the left, all other terms to the right
-1.1x=-692800
x=-692800/-1.1
x=629818+0.19999999995343/1.1
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