How do I find x for question 11 when points A, B and C are collinear and point B is between A and C.

Samo Jerom asked Oct 4, 2023

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3 votes

Samo Jerom asked Oct 4, 2023

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29 votes

We have the following:

$\begin{gathered} AC=AB+BC \\ AC=3x+3 \\ AB=-1+2x \\ BC=11 \end{gathered}$

replacing:

$\begin{gathered} 3x+3=-1+2x+11 \\ 3x-2x=-1+11-3 \\ x=7 \end{gathered}$

the answer is what x is equal a 7

Yossi Dahan answered Oct 9, 2023

2.5k points

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