20(1-4x)=400

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Solution for 20(1-4x)=400 equation: 



20(1-4x)=400

We move all terms to the left:

20(1-4x)-(400)=0

We add all the numbers together, and all the variables

20(-4x+1)-400=0

We multiply parentheses

-80x+20-400=0

We add all the numbers together, and all the variables

-80x-380=0

We move all terms containing x to the left, all other terms to the right

-80x=380

x=380/-80

x=-4+3/4

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