kylliedenniston kylliedenniston
  • 15-01-2021
  • Mathematics
contestada

Solve |x – 4| + 6 = 17.
A. X= 15 and x = -15
B. x= -15 and x= 7
C. x = 15 and x= -7
D. x = -15 and x = -7

Respuesta :

SkiffMackinaw SkiffMackinaw
  • 15-01-2021

Answer:

[tex]\mathrm{C)\:}x=15,\:-7[/tex]

Step-by-step explanation:

For [tex]|a-b|=c[/tex], there are two possible cases:

[tex]\begin{cases}a-b=c\\a-b=-c\\\end{cases}[/tex]

Solving for both cases, we get:

[tex]\begin{cases}x-4+6=17, \:x+2=17, \: \fbox{$x=15$}\\-(x-4)+6=17,\: -x+10=17, \: -x=7, \:, \fbox{$x=-7$}\\\end{cases}[/tex]

Answer Link

Otras preguntas

Suddenly, I was feeling so upset that I fumbled for words and dropped the phone on my foot. O conjunction O preposition O adverb O interjection
"She's at the movie," he said. O conjunction O preposition O adverb O interjection
please answer the question below
I NEED THIS DONE SUPER FAST! What fraction represents the location where the arrow is pointing on the number line below? A. 5/8 B. 7/8 C. 9/16 D. 11/16
please help and answer in simple terms Compare and contrast exponential and linear functions using both graphs and tables. How would you determine if a function
A total of $381 tickets were sold for the school play there were either adult tickets or student tickets the number of student tickets sold was two times the nu
SOMEONE PLS HELP!! Pls try to explain your answer, you are trying to solve X and Y
She received ____ Country A dollars.
Calculate the amount of pure substance 500 g box of table salt (assume pure sodium chloride)
Tory has a scarf that is 72 inches long. How long is the scarf in yards?​