20=-2(x-1)+8

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Solution for 20=-2(x-1)+8 equation: 



20=-2(x-1)+8

We move all terms to the left:

20-(-2(x-1)+8)=0



We calculate terms in parentheses: -(-2(x-1)+8), so:

-2(x-1)+8

We multiply parentheses

-2x+2+8

We add all the numbers together, and all the variables

-2x+10

Back to the equation:

-(-2x+10)



We get rid of parentheses

2x-10+20=0

We add all the numbers together, and all the variables

2x+10=0

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

2x=-10

x=-10/2

x=-5

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