AlbanyTitanK9753
AlbanyTitanK9753 AlbanyTitanK9753
  • 25-01-2020
  • Mathematics
contestada

Solve 12|x|−7=812|x|-7=8​

Respuesta :

jessica0111
jessica0111 jessica0111
  • 25-01-2020

Answer:

Step-by-step explanation:

It's unclear, but if is the question

12x-7=8

then

x=[tex]\frac{5}{4}[/tex]

Answer Link
gmany
gmany gmany
  • 25-01-2020

Answer:

[tex]\huge{\boxed{x=\pm\dfrac{5}{4}}[/tex]

Step-by-step explanation:

[tex]12|x|-7=8\qquad\text{add 7 to both sides}\\\\12|x|-7+7=8+7\\\\12|x|=15\qquad\text{divide both sides by 12}\\\\\dfrac{12|x|}{12}=\dfrac{15}{12}\\\\|x|=\dfrac{15:3}{12:3}\\\\|x|=\dfrac{5}{4}\iff x=\pm\dfrac{5}{4}[/tex]

Answer Link

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