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9.00+3x=20.00
We move all terms to the left:
9.00+3x-(20.00)=0
We add all the numbers together, and all the variables
3x+9.00-20=0
We add all the numbers together, and all the variables
3x-11=0
We move all terms containing x to the left, all other terms to the right
3x=11
x=11/3
x=3+2/3
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