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x-1.87x=13.49
We move all terms to the left:
x-1.87x-(13.49)=0
We add all the numbers together, and all the variables
-0.87x-13.49=0
We move all terms containing x to the left, all other terms to the right
-0.87x=13.49
x=13.49/-0.87
x=-15+0.44/0.87
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