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(105-x)/2.2.2.2.2=2015+1
We move all terms to the left:
(105-x)/2.2.2.2.2-(2015+1)=0
We add all the numbers together, and all the variables
(-1x+105)/2.2.2.2.2-2016=0
We multiply all the terms by the denominator
(-1x+105)-2016*2.2.2.2.2=0
We add all the numbers together, and all the variables
(-1x+105)-35.4816=0
We get rid of parentheses
-1x+105-35.4816=0
We add all the numbers together, and all the variables
-1x+69.5184=0
We move all terms containing x to the left, all other terms to the right
-x=-69.5184
x=-69.5184/-1
x=69+0.5184/1
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