Xanderr Xanderr

02-10-2020
Mathematics

contestada

Plz help me.
Solve the system of linear equations by substitution
X+y=-7
-5x+y=5

Respuesta :

jennyzhang096 jennyzhang096

05-10-2020

Answer:

x= -2 y= -5

Step-by-step explanation:

X+y=-7

x+-y-7

-5(-y-7)+y=5

5y+35+y=5

6y+35=5

6y=5-s5

6y=-30

y=-5

-5x+(-5)=5

-5x=5+5

-5x=10

x=-2

Answer Link

Otras preguntas

How to solve the inequality -1/3(6x+3)<-14

In The Feminine Mystique, many women expressed a feeling of isolation and an almost invisibility in American society. a. True b. False

Sex cells are called _____. gonads gametes gametangia

As a liquid evaporates, its temperature A. increases. B. decreases. C. remains constant. D. fluctuates randomly.

water is composed of two hydrogen atoms and one oxygen atoms, therefore,water is a _____. A-compound B-molecule C-compound and molecule D-ion

A mushroom that you see above ground is actually a a. fruiting body. b. spore. c. hyphae. d. rhizoid.

get 20 pts plsssss anser quick...Which measure summarizes all of the values of a data set with a single number A) range B) median C) first

suppose you are looking at a scene that has mountains near an a ocean. where do you think the crust would be the thickest? why?

What is the speed of a truck that travels 15 KM in 12 minutes

Read the excerpt from Part 3 of The Odyssey by Homer. so let me tell [Circe’s] forecast: then we die with our eyes open, if we are going to die, or know what de