How do you simplify and find the excluded values of 7/(x+3)7x+3?

1 Answer
Jim G.
Jul 30, 2017

x!=-3x≠−3

Explanation:

7/(x+3)" is already in simplest form"7x+3 is already in simplest form

"the denominator cannot equal zero as this would make"the denominator cannot equal zero as this would make
"the expression undefined. Equating the denominator to"the expression undefined. Equating the denominator to
"zero and solving gives the value that x cannot be"zero and solving gives the value that x cannot be

"solve "x+3=0rArrx=-3larrcolor(red)" excluded value"solve x+3=0⇒x=−3← excluded value

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