anaidvilla121 anaidvilla121

13-01-2019
Mathematics

contestada

What’s The elimination 7x+4y=-4 5x+8y=28

Respuesta :

mathecoach mathecoach

13-01-2019

Answer:

7x + 4y = -4

5x + 8y = 28

II - 2*I

- 9·x = 36 --> x = -4

7*(-4) + 4y = -4 --> y = 6

Answer Link

Otras preguntas

please help me pleaseeeee

which term gives the number of cycles of a periodic function that occurs in one horizontal unit

Which of the two individuals inherited an interest in learning from Plato and Socrates? Select two that apply. A. Alexander the Great B. Aristotle C. Herodotus

a table with mass 23.5 kg sits on the ground what is the normal force on the table? a-176 N b-442 N c-230 N d-23.5 N

Think about a bush in your back yard. Is it alive according to the characteristics of life? Why or why not?

URGENT! thanks! Bonnie makes the frame of a cube out of 12 pieces of wire that are each six inches long. Meanwhile Roark uses 1-inch-long pieces of wire to make

Based on the story’s ending, which character has the more accurate perception of Mr. Shiftlet?

what are some renewbale and nonrenewable energy sources.

what was the cause of the civil rights

(WILL GIVE BRAINLIEST ANSWER) A runner burns 10 kilocalories per minute. If the runner completes a race in 1 hour and ten minutes, how many kilocalories does h