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Annie solved the equation 7x + 16 = 2(x + 2). She then stated that x= -2 is a solution to the equation. Is Annie correct?A. Yes, Annie is correct.B. No, Annie is not correct.

User Sleepy
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1 Answer

4 votes

Solution:

The equation Annie solved was;


7x+16=2(x+2)

Then, we have;


7x+16=2x+4

Collect like terms;


\begin{gathered} 7x-2x=4-16 \\ 5x=-12 \end{gathered}

Divide both sides by 5;


\begin{gathered} (5x)/(5)=-(12)/(5) \\ \\ x=-2.4 \end{gathered}

Thus, Annie is not correct.

CORRECT OPTION: (B) No, Annie is not correct

User NDUF
by
8.1k points

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