13-2(2x+1)=21

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Solution for 13-2(2x+1)=21 equation: 



13-2(2x+1)=21

We move all terms to the left:

13-2(2x+1)-(21)=0

We add all the numbers together, and all the variables

-2(2x+1)-8=0

We multiply parentheses

-4x-2-8=0

We add all the numbers together, and all the variables

-4x-10=0

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

-4x=10

x=10/-4

x=-2+1/2

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