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4.3x-7.8=5.1
We move all terms to the left:
4.3x-7.8-(5.1)=0
We add all the numbers together, and all the variables
4.3x-12.9=0
We move all terms containing x to the left, all other terms to the right
4.3x=12.9
x=12.9/4.3
x=3+1.7763568394003E-15/4.3
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