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-30+9x=-0.5x
We move all terms to the left:
-30+9x-(-0.5x)=0
We get rid of parentheses
9x+0.5x-30=0
We add all the numbers together, and all the variables
9.5x-30=0
We move all terms containing x to the left, all other terms to the right
9.5x=30
x=30/9.5
x=3+1/6.3333333333333
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