ygbinjmkioiiu
ygbinjmkioiiu ygbinjmkioiiu
  • 11-10-2021
  • Mathematics
contestada

−7x−6y=2
7x+4y=−6
solve for x and y

Respuesta :

Аноним Аноним
  • 11-10-2021

Answer:

[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:x=-2,\:y=2}[/tex]

Step-by-step explanation:

[tex]\begin{bmatrix}-7x-6y=2\\ 7x+4y=-6\end{bmatrix}[/tex]

[tex]\mathrm{Substitute\:}x=-\frac{2+6y}{7}[/tex]

[tex]\begin{bmatrix}7\left(-\frac{2+6y}{7}\right)+4y=-6\end{bmatrix}[/tex]

[tex]\begin{bmatrix}-2-2y=-6\end{bmatrix}[/tex]

[tex]\mathrm{For\:}x=-\frac{2+6y}{7}[/tex]

[tex]\mathrm{Substitute\:}y=2[/tex]

[tex]x=-\frac{2+6\cdot \:2}{7}\\\\x=-2[/tex]

Answer Link

Otras preguntas

Which Australian city is located north of the 15°S latitude?
What does this say about Greek attitudes and values? Check all that apply.
What is the most likely reason Gabriel chose to write his essay with this point of view?
Which sub-layer thins out into space where there is no air
Which statement about aerobic exercise is NOT true? Aerobic exercise strengthens the muscles that help us breathe. Aerobic exercise is carried out for a sustain
A nation’s borders can be changed as a result of
Acid rain is a secondary pollutant. Please select the best answer from the choices provided T F
Which of the following are mosquito-borne diseases? Dengue fever and pupa Encephalitis and Asian tiger Dengue fever and encephalitis West Nile virus and wri
If you were a waitress or a waiter, which of the following would you probably say often?
Why are crickets primary consumers