30-3x=31.5

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Solution for 30-3x=31.5 equation:



30-3x=31.5
We move all terms to the left:
30-3x-(31.5)=0
We add all the numbers together, and all the variables
-3x-1.5=0
We move all terms containing x to the left, all other terms to the right
-3x=1.5
x=1.5/-3
x=-1/2

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