minerva2005hernandez minerva2005hernandez

07-04-2020
Mathematics

contestada

Solve the following system of equations by elimination. Express
the solution as an ordered pair (x, y).
-x- 3y = 20
4x + 3y = 1

Respuesta :

juls1816 juls1816

07-04-2020

Add the two equations together with the same variables

-x+4x=3x
-3y+3y=0
20+1=21

You now get

3x=21

Divide and find x =7

Plug in x to the equation to find y
Y=-9

(7,-9)

Answer Link

Otras preguntas

Que hace tu padre ---> a. esta cocinando b. estas....c. estoy... orD. estan....

Which of the following served as a model of US Bill of Rights

Fulform of AIDS and HIV.

Why does jupiter have several distinct cloud layers?

Cells are specially designed to carry through the body

am i right?? please help!

Which statement would most likely be made by a supporter of federalism ?

The population at a football stadium is 4,068 people.The ratio of men to women in the stadium is 5:4.How many women are at the stadium?

Charging by ____ occurs when electrons are transferred from one object to another by direct contact.

A physical combination of two or more substances that can be separated by physical means.