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20x+1/2=x-41/2
We move all terms to the left:
20x+1/2-(x-41/2)=0
We add all the numbers together, and all the variables
20x-(+x-41/2)+1/2=0
We get rid of parentheses
20x-x+41/2+1/2=0
We multiply all the terms by the denominator
20x*2-x*2+41+1=0
We add all the numbers together, and all the variables
20x*2-x*2+42=0
Wy multiply elements
40x-2x+42=0
We add all the numbers together, and all the variables
38x+42=0
We move all terms containing x to the left, all other terms to the right
38x=-42
x=-42/38
x=-1+2/19
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