100=2x+2(4x-10)

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Solution for 100=2x+2(4x-10) equation: 



100=2x+2(4x-10)

We move all terms to the left:

100-(2x+2(4x-10))=0



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

2x+2(4x-10)

We multiply parentheses

2x+8x-20

We add all the numbers together, and all the variables

10x-20

Back to the equation:

-(10x-20)



We get rid of parentheses

-10x+20+100=0

We add all the numbers together, and all the variables

-10x+120=0

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

-10x=-120

x=-120/-10

x=+12

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