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3x+4.3=-2.9
We move all terms to the left:
3x+4.3-(-2.9)=0
We add all the numbers together, and all the variables
3x+7.2=0
We move all terms containing x to the left, all other terms to the right
3x=-7.2
x=-7.2/3
x=-2+1/2.5
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