3x+7=20.5

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Solution for 3x+7=20.5 equation: 



3x+7=20.5

We move all terms to the left:

3x+7-(20.5)=0

We add all the numbers together, and all the variables

3x-13.5=0

We move all terms containing x to the left, all other terms to the right

3x=13.5

x=13.5/3

x=4+1/2

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