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1 vote
1 vote
IF AB = (2x + 23). BC = (12 + 7x), and CD = 19 - 9x), find AD.

User Kan
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1 Answer

22 votes
22 votes

The addition of length of each line segment gives the value of AD.


\begin{gathered} \text{From the number line, AB+BC+CD=AD} \\ AD=(2x+23)+(12+7x)+(19-9x)=2x+7x-9x+23+12+19=54 \end{gathered}

The value of AD is 54.

User Phoku
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