400x-40=-1

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Solution for 400x-40=-1 equation:



400x-40=-1
We move all terms to the left:
400x-40-(-1)=0
We add all the numbers together, and all the variables
400x-39=0
We move all terms containing x to the left, all other terms to the right
400x=39
x=39/400
x=39/400

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