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+3-4x=6.8
We move all terms to the left:
+3-4x-(6.8)=0
We add all the numbers together, and all the variables
-4x-3.8=0
We move all terms containing x to the left, all other terms to the right
-4x=3.8
x=3.8/-4
x=-2.1111111111111/2.2222222222222
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