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10x-1+10x-1+x+x=30
We move all terms to the left:
10x-1+10x-1+x+x-(30)=0
We add all the numbers together, and all the variables
22x-32=0
We move all terms containing x to the left, all other terms to the right
22x=32
x=32/22
x=1+5/11
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