2x+4x=129

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Solution for 2x+4x=129 equation: 



2x+4x=129

We move all terms to the left:

2x+4x-(129)=0

We add all the numbers together, and all the variables

6x-129=0

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

6x=129

x=129/6

x=21+1/2

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