8+4=2x+54

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Solution for 8+4=2x+54 equation: 



8+4=2x+54

We move all terms to the left:

8+4-(2x+54)=0

We add all the numbers together, and all the variables

-(2x+54)+12=0

We get rid of parentheses

-2x-54+12=0

We add all the numbers together, and all the variables

-2x-42=0

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

-2x=42

x=42/-2

x=-21

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