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2.79+1.66666666667+0.5x=9
We move all terms to the left:
2.79+1.66666666667+0.5x-(9)=0
We add all the numbers together, and all the variables
0.5x-4.54333333333=0
We move all terms containing x to the left, all other terms to the right
0.5x=4.54333333333
x=4.54333333333/0.5
x=9+0.04333333333/0.5
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