4(5+x)=8(5-x)

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Solution for 4(5+x)=8(5-x) equation: 



4(5+x)=8(5-x)

We move all terms to the left:

4(5+x)-(8(5-x))=0

We add all the numbers together, and all the variables

4(x+5)-(8(-1x+5))=0

We multiply parentheses

4x-(8(-1x+5))+20=0



We calculate terms in parentheses: -(8(-1x+5)), so:

8(-1x+5)

We multiply parentheses

-8x+40

Back to the equation:

-(-8x+40)



We get rid of parentheses

4x+8x-40+20=0

We add all the numbers together, and all the variables

12x-20=0

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

12x=20

x=20/12

x=1+2/3

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