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8.1x+9=5.1-3
We move all terms to the left:
8.1x+9-(5.1-3)=0
We add all the numbers together, and all the variables
8.1x+9-(2.1)=0
We add all the numbers together, and all the variables
8.1x+6.9=0
We move all terms containing x to the left, all other terms to the right
8.1x=-6.9
x=-6.9/8.1
x=-2.37931034483/2.79310344828
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