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-0.65x+0.35x=7.8
We move all terms to the left:
-0.65x+0.35x-(7.8)=0
We add all the numbers together, and all the variables
-0.3x-7.8=0
We move all terms containing x to the left, all other terms to the right
-0.3x=7.8
x=7.8/-0.3
x=-26
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