x+3+x=210

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Solution for x+3+x=210 equation: 



x+3+x=210

We move all terms to the left:

x+3+x-(210)=0

We add all the numbers together, and all the variables

2x-207=0

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

2x=207

x=207/2

x=103+1/2

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