400-3x=

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Solution for 400-3x= equation:


400-3x=0

We simplify the equation to the form, which is simple to understand 
400-3x=0

We move all terms containing x to the left and all other terms to the right. 
-3x=0-400

We simplify left and right side of the equation. 
-3x=-400

We divide both sides of the equation by -3 to get x. 
x=133.33333333333

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