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2(n+4) = (2x_)+(_x4)

Solving for blank, trying to help my daughter and I am not quite clear

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Sheila M. | Friendly College Math Professor - understands students' math anxietyFriendly College Math Professor - unders...
4.9 4.9 (63 lesson ratings) (63)

Hi, Morgan.

It looks like your daughter's math class is learning the distributive property.  
It looks like this format:
a(b + c) = a•b + a•c 

Here is an example:
3(m + 7) = 3•m + 3•7

I hope this helps you see what to do for your daughter's problem.