3.9x-6.36=6.9

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Solution for 3.9x-6.36=6.9 equation: 



3.9x-6.36=6.9

We move all terms to the left:

3.9x-6.36-(6.9)=0

We add all the numbers together, and all the variables

3.9x-13.26=0

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

3.9x=13.26

x=13.26/3.9

x=3+1/2.5

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