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

If 32% of a number is 64, what is the number?

These clouds appear long, flat, and spread across the sky. Cirrus Stratus Cumulus Stigform

It takes 6 hours to travel 372 miles how many hors will it take to travel 279

What role did geography play in the growth of three distinct cultural regions in the English colonies? A. Geography and climate determined what kinds of crops c

What is the value of x in the equation x – y = 30, when y = 15?

Daniel grabbed a handful of heart shaped candies. 2/5 of the candy he grabbed were white. If there were 4 candies in his hand how many candies did he grab in al

Which of the following helped define the counterculture? a. Respecting traditional values b. Following mainstream religions c. Attending college d. Rejectin

Ty has 2/6 of candy in tom has 3/8 of candy how much candy do they have in all

Which statements accurately describe the Persian Wars? Choose all answers that are correct. a. Athens was destroyed by the Persians and never regained its stren

Which words in the sentence are the adverb clause? Before we leave for our hike, we should put out the camp fire. a. the camp fire b. we should c. should put o