90+x+3x+11=139

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Solution for 90+x+3x+11=139 equation: 



90+x+3x+11=139

We move all terms to the left:

90+x+3x+11-(139)=0

We add all the numbers together, and all the variables

4x-38=0

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

4x=38

x=38/4

x=9+1/2

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