02-11-2016
Mathematics

contestada

-x+2y=9
-7x-2y=-1
Solve each system by elimination

Respuesta :

03-11-2016

x - 2y = - 9
7x + 2y = 1

x - 2y = - 9
(+)
7x + 2y = 1
___________
8x = - 8

x = - 1

- 1 - 2y = - 9
2y = 8
y = 4

i am a mathematics teacher. if anything to ask please pm me

Answer Link

Otras preguntas

A political leader decides to increase his government's control over people's lives. He bans all forms of media that don't support him, sends secret police to a

Stuck and need help!!

How could these instructions be improved for better understanding of the game? A. They should end with step 9 and delete steps 10 and 11. B. They should include

When's frank's wife was diagnosed with breast cancer, rather than deal with his feelings, he searched countless hours on the internet and in the library for the

What are the defining characteristics of the progressive era?

The General Accounting Office (GAO) assists Congress in its oversight function by

WILL MARK BRAINLIEST PLEASE HELP Using a directrix of y = 5 and a focus of (4, 1), what quadratic function is created? f(x) = 1/4(x − 4)^2 − 3 f(x) = 1/8(x +

How did actions and policies of the federal government affect the fate of Indians in the West?

Which of the following is NOT a benefit of cool down activities?

Which system is responsible for the exchange of oxygen and carbon dioxide