(4x+7)=21

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



(4x+7)=21

We move all terms to the left:

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

We get rid of parentheses

4x+7-21=0

We add all the numbers together, and all the variables

4x-14=0

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

4x=14

x=14/4

x=3+1/2

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