3x+x=345

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Solution for 3x+x=345 equation: 



3x+x=345

We move all terms to the left:

3x+x-(345)=0

We add all the numbers together, and all the variables

4x-345=0

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

4x=345

x=345/4

x=86+1/4

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