3x-8=5+7

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Solution for 3x-8=5+7 equation: 



3x-8=5+7

We move all terms to the left:

3x-8-(5+7)=0

We add all the numbers together, and all the variables

3x-8-12=0

We add all the numbers together, and all the variables

3x-20=0

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

3x=20

x=20/3

x=6+2/3

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