8x-9y=19 4x+y=-7 How Do I Do This Type Of Math

Question

03-05-2017
Mathematics

contestada

8x-9y=19 4x+y=-7 How Do I Do This Type Of Math

Respuesta :

Otras preguntas

Two identical ions are each missing two electrons, each ion has a charge of 2e. What is the magnitude of the force between the ions when their separation is 2.1

PLEASE HELP HURRY What happened to a pharaohs body after he/she died? options: The were cremated They had the choice to be buried in the Nile or in the Sahara.

Body composition is examined with regards to_____________ A.bone B. muscles C. lean mass in proportion to body____________ A.organs B. weight C. fat .

a source that is written or created by a person who expirenced an event personally is called a

I know its the weekend but i need help. Has someone read the red badge of courage?

Jack and Nina are graphing two equations on a coordinate grid. Jack has graphed the equation y = 2x. If Nina graphs y = 5x, where will her graph be in relation

A high school student makes a large pot of hot chocolate for her friends. Once it is warm enough, she pours a little bit of the hot chocolate into a mug so that

I need to know for my hw

Which of these statements describes how MOST conscientious objectors were treated during World War I?

mreijepatmat mreijepatmat · Answer 1 · 2017-05-03T18:42:01+02:00

mreijepatmat mreijepatmat

03-05-2017

8x-9y=19
4x+y=-7
Multiply all terms of the 2nd by (9)===> 36x + 9y= 63

add (36x 9y= 63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3

Answer Link