SirCaesar SirCaesar
  • 12-01-2020
  • Mathematics
contestada

Solve each system by elimination

X-4y-z=16
X=-2
Y=3z-3

Respuesta :

jenna0226
jenna0226 jenna0226
  • 12-01-2020
Fill in x=-2 and y=3z-3 into the first equation. -2-4(3z-3)-z=16. -2-12z+12-z=16. -13z+10=16. -13z=6. Z=-6/13. Then you fill in z into y=3z-3. 3(-6/13)-3. -18/13-3. -18/13-39/13. Y=-57/13. The answer is (-2,-57/13,-6/13).
Answer Link

Otras preguntas

which of the following shows the extraneous solution to the logarithmic equation below???
What did the "Unabomber" Theodore Kaczynski speak out against? A. technological advancement B. the government C. globalization D. immigration
sin (a+b) = sin a cos b- cos a sin b for all values of a and b. true or false?
Fill in the blank with the appropriate word to complete the sentence: Nous faisons partie d’une équipe de natation. Nous allons _________ tous les jours.
What is the bruising of brain tissue as the result of a head injury?
What is the answer please
Simplify the expression. 7a^–5 b^3
The length of a rectangle is 8 1/2 inches and the width is 3 1/4 inches. What is the ratio, using whole numbers, of the length to the width?
Is a technologically more advanced society necessarily a superior one?
which is the best estimate of -14 1/9 (-2 9/10) A- (-42) B-(-28) C-28 D-42