How do you solve #-( - n + 7) = 25- 3n#?

1 Answer
jk.13
Jun 9, 2018

#n=8#

Explanation:

First, distribute the negative sign (it flips the existing sign)
#n-7=25-3n#

Add 7 to both sides
#n=32-3n#

Add 3n to both sides
#4n=32#

Divide both sides by 4
#n=8#

The key is to use the INVERSE operation (ex: addition/subtraction, multiplication/division)

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