skylera482 skylera482

15-10-2020
Mathematics

contestada

will mark brainliest:) helppppp -7x + y = -19 -2x+ 3y = -19 solve the system of equations

Respuesta :

nineex5 nineex5

15-10-2020

Answer:

X=2, Y=-15

Step-by-step explanation:

-7x+y=-19

-2x+3y=-19

------------------

-3(-7x+y)=-19

-2x+3y=-19

---------------------

21x-3y=57

-2x+3y=-19

---------------------

19x = 38

19x/19=38/19

x=2

now plug 2 into x of the second equation to get y=-15

Answer Link

Otras preguntas

Can someone help me on 17 and 18?? I really need the help!!!

If a denotes some event, what does upper a overbara denote? if p(a)equals=0.9930.993, what is the value of p(upper a overbara)? if p(a)equals=0.9930.993

Each week, Marcia travels to the office where she works, the supermarket, and a local fitness center. The three locations represent the vertices of a triangle.

What is the balance as result of having a credit of $84 and a debit of $29

What causes Arsat to first speak to Diamelen? He wants to tell her that he loves her. He has been told by a Rajah to speak to her. He has been assigned to

French spelling sheet, look say cover write check. 1 st night 2 nd night 3 rd night Il est.. Une heure.. Midi.. Minuit.. Et demie.. Et quart.. Moins le

Point D is between points R and S on . Find the length of if RD = 7 and DS = 12. A. 1 B. 5 C. 18 D. 19

What is the answer to this question?

[tex] \frac{3}{4} [/tex] tons = how many pounds

A closet contains n pairs of shoes. (a) if 2r shoes are chosen at random (2r < n), what is the probability that there will be no matching pair in the sample?