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-0.65x+0.35x=6.9
We move all terms to the left:
-0.65x+0.35x-(6.9)=0
We add all the numbers together, and all the variables
-0.3x-6.9=0
We move all terms containing x to the left, all other terms to the right
-0.3x=6.9
x=6.9/-0.3
x=-23+8.8817841970013E-16/0.3
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