7+2(x-4)=21

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



7+2(x-4)=21

We move all terms to the left:

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

We add all the numbers together, and all the variables

2(x-4)-14=0

We multiply parentheses

2x-8-14=0

We add all the numbers together, and all the variables

2x-22=0

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

2x=22

x=22/2

x=11

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