12x=40+4x

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Solution for 12x=40+4x equation: 



12x=40+4x

We move all terms to the left:

12x-(40+4x)=0

We add all the numbers together, and all the variables

12x-(4x+40)=0

We get rid of parentheses

12x-4x-40=0

We add all the numbers together, and all the variables

8x-40=0

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

8x=40

x=40/8

x=5

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