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-6.5x+0.61=-1.99
We move all terms to the left:
-6.5x+0.61-(-1.99)=0
We add all the numbers together, and all the variables
-6.5x+2.6=0
We move all terms containing x to the left, all other terms to the right
-6.5x=-2.6
x=-2.6/-6.5
x=1/2.5
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