2x+4=12.

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Solution for 2x+4=12. equation: 



2x+4=12.

We move all terms to the left:

2x+4-(12.)=0

We add all the numbers together, and all the variables

2x+4-12=0

We add all the numbers together, and all the variables

2x-8=0

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

2x=8

x=8/2

x=4

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