400x-100(30-x)=0

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Solution for 400x-100(30-x)=0 equation:


400x-100(30-x)=0

We simplify the equation to the form, which is simple to understand 
400x-100(30-x)=0

Reorder the terms in parentheses
400x+(-3000+100x)=0

Remove unnecessary parentheses
+400x-3000+100x=0

We move all terms containing x to the left and all other terms to the right. 
+400x+100x=0+3000

We simplify left and right side of the equation. 
+500x=+3000

We divide both sides of the equation by 500 to get x. 
x=6

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