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0=-3x-10.5
We move all terms to the left:
0-(-3x-10.5)=0
We add all the numbers together, and all the variables
-(-3x-10.5)=0
We get rid of parentheses
3x+10.5=0
We move all terms containing x to the left, all other terms to the right
3x=-10.5
x=-10.5/3
x=-3+1/2
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