12-2(x-5)=21

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Solution for 12-2(x-5)=21 equation: 



12-2(x-5)=21

We move all terms to the left:

12-2(x-5)-(21)=0

We add all the numbers together, and all the variables

-2(x-5)-9=0

We multiply parentheses

-2x+10-9=0

We add all the numbers together, and all the variables

-2x+1=0

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

-2x=-1

x=-1/-2

x=1/2

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