Toes266
Toes266 Toes266
  • 13-09-2021
  • Mathematics
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CD bisects AB at D. If AD = 4x - 1 and DB = 9x - 21, find x.

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Аноним Аноним
  • 13-09-2021

[tex]\\ \ast\sf\hookrightarrow AD=DB[/tex]

[tex]\\ \ast\sf\hookrightarrow 4x-1=9x-21[/tex]

[tex]\\ \ast\sf\hookrightarrow 9x-4x=-1+21[/tex]

[tex]\\ \ast\sf\hookrightarrow 5x=20[/tex]

[tex]\\ \ast\sf\hookrightarrow x=\dfrac{20}{5}[/tex]

[tex]\\ \ast\sf\hookrightarrow x=4[/tex]

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