-4(5-x)=20

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Solution for -4(5-x)=20 equation: 



-4(5-x)=20

We move all terms to the left:

-4(5-x)-(20)=0

We add all the numbers together, and all the variables

-4(-1x+5)-20=0

We multiply parentheses

4x-20-20=0

We add all the numbers together, and all the variables

4x-40=0

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

4x=40

x=40/4

x=10

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