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3x+21/2=2x-41/2
We move all terms to the left:
3x+21/2-(2x-41/2)=0
We add all the numbers together, and all the variables
3x-(+2x-41/2)+21/2=0
We get rid of parentheses
3x-2x+41/2+21/2=0
We multiply all the terms by the denominator
3x*2-2x*2+41+21=0
We add all the numbers together, and all the variables
3x*2-2x*2+62=0
Wy multiply elements
6x-4x+62=0
We add all the numbers together, and all the variables
2x+62=0
We move all terms containing x to the left, all other terms to the right
2x=-62
x=-62/2
x=-31
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