(2-x)4=-20

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Solution for (2-x)4=-20 equation: 



(2-x)4=-20

We move all terms to the left:

(2-x)4-(-20)=0

We add all the numbers together, and all the variables

(-1x+2)4-(-20)=0

We add all the numbers together, and all the variables

(-1x+2)4+20=0

We multiply parentheses

-4x+8+20=0

We add all the numbers together, and all the variables

-4x+28=0

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

-4x=-28

x=-28/-4

x=+7

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