NajmaC761706 NajmaC761706

27-10-2022
Mathematics

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

how do I find x for question 11 when points A B and C are collinear and point B is between A and C class=

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AllannaS353046 AllannaS353046

27-10-2022

We have the following:

[tex]\begin{gathered} AC=AB+BC \\ AC=3x+3 \\ AB=-1+2x \\ BC=11 \end{gathered}[/tex]

replacing:

[tex]\begin{gathered} 3x+3=-1+2x+11 \\ 3x-2x=-1+11-3 \\ x=7 \end{gathered}[/tex]

the answer is what x is equal a 7

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