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3^x+3^x+2+3^x-1=31/3
We move all terms to the left:
3^x+3^x+2+3^x-1-(31/3)=0
We add all the numbers together, and all the variables
3^x+3^x+3^x+2-1-(+31/3)=0
We add all the numbers together, and all the variables
3^x+3^x+3^x+1-(+31/3)=0
We get rid of parentheses
3^x+3^x+3^x+1-31/3=0
We multiply all the terms by the denominator
3^x*3+3^x*3+3^x*3-31+1*3=0
We add all the numbers together, and all the variables
3^x*3+3^x*3+3^x*3-28=0
Wy multiply elements
9x+9x+9x-28=0
We add all the numbers together, and all the variables
27x-28=0
We move all terms containing x to the left, all other terms to the right
27x=28
x=28/27
x=1+1/27
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