109+x+x+39=139

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Solution for 109+x+x+39=139 equation: 



109+x+x+39=139

We move all terms to the left:

109+x+x+39-(139)=0

We add all the numbers together, and all the variables

2x+9=0

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

2x=-9

x=-9/2

x=-4+1/2

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