2(7x-7)-2(4x+5)=21-4x

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Solution for 2(7x-7)-2(4x+5)=21-4x equation: 



2(7x-7)-2(4x+5)=21-4x

We move all terms to the left:

2(7x-7)-2(4x+5)-(21-4x)=0

We add all the numbers together, and all the variables

2(7x-7)-2(4x+5)-(-4x+21)=0

We multiply parentheses

14x-8x-(-4x+21)-14-10=0

We get rid of parentheses

14x-8x+4x-21-14-10=0

We add all the numbers together, and all the variables

10x-45=0

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

10x=45

x=45/10

x=4+1/2

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