3(129+9)=x

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Solution for 3(129+9)=x equation: 



3(129+9)=x

We move all terms to the left:

3(129+9)-(x)=0

We add all the numbers together, and all the variables

-x+3138=0

We add all the numbers together, and all the variables

-1x+3138=0

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

-x=-3138

x=-3138/-1

x=+3138

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