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12.9x+0=34+9.9x
We move all terms to the left:
12.9x+0-(34+9.9x)=0
We add all the numbers together, and all the variables
12.9x-(9.9x+34)+0=0
We add all the numbers together, and all the variables
12.9x-(9.9x+34)=0
We get rid of parentheses
12.9x-9.9x-34=0
We add all the numbers together, and all the variables
3x-34=0
We move all terms containing x to the left, all other terms to the right
3x=34
x=34/3
x=11+1/3
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