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-30-5x=+20
We move all terms to the left:
-30-5x-(+20)=0
We add all the numbers together, and all the variables
-5x-30-20=0
We add all the numbers together, and all the variables
-5x-50=0
We move all terms containing x to the left, all other terms to the right
-5x=50
x=50/-5
x=-10
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