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11=x*2*1.86
We move all terms to the left:
11-(x*2*1.86)=0
We add all the numbers together, and all the variables
-(+x*2*1.86)+11=0
We get rid of parentheses
-x*2*1.86+11=0
Wy multiply elements
-3.72x*1+11=0
We move all terms containing x to the left, all other terms to the right
-3.72x*1=-11
x=-11/1
x=-11
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