20=10-4(2-x)

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Solution for 20=10-4(2-x) equation: 



20=10-4(2-x)

We move all terms to the left:

20-(10-4(2-x))=0

We add all the numbers together, and all the variables

-(10-4(-1x+2))+20=0



We calculate terms in parentheses: -(10-4(-1x+2)), so:

10-4(-1x+2)

determiningTheFunctionDomain
-4(-1x+2)+10

We multiply parentheses

4x-8+10

We add all the numbers together, and all the variables

4x+2

Back to the equation:

-(4x+2)



We get rid of parentheses

-4x-2+20=0

We add all the numbers together, and all the variables

-4x+18=0

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

-4x=-18

x=-18/-4

x=4+1/2

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