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x+6=-0.5x+3
We move all terms to the left:
x+6-(-0.5x+3)=0
We get rid of parentheses
x+0.5x-3+6=0
We add all the numbers together, and all the variables
1.5x+3=0
We move all terms containing x to the left, all other terms to the right
1.5x=-3
x=-3/1.5
x=-2
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