7x+7(4)=21

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



7x+7(4)=21

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x+53=0

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

7x=-53

x=-53/7

x=-7+4/7

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