carloseontiveros carloseontiveros

22-06-2017
Mathematics

contestada

find the solution of this system of equations. seprate the x- and y- valuess with a comma.
x=-4+y
-2x-5y=15

Respuesta :

22-06-2017

( x , y ) = ( -5 , -1 )

Answer Link

ghanami ghanami

22-06-2017

hello :
x=-4+y ...(1)
-2x-5y=15....(2)
subct in (2) :
-2(-4+y)-5y = 15
8-2y-5y = 15
-7y = 7
y = -1
in (1) : x = -4+(-1)
x= -5

Answer Link

Otras preguntas

What is the area, in square units, of triangle STU?

I will give lots of points please help

Why star topology is more reliable than bus or ring topologies

x/x-2 + x-1/x+1= -1 Can someone walk me through the steps of this problem? Much appreciated. :)

Giraffe Jack is 19 feet tall, and Ostrich Jim is 9 feet tall. A) What percent of Jack's height is Jim's height? B)What percent of Jim's height is Jack's height?

How did the Great Depression help to create new political orders in many countries

A man invests $10000 in a savings account. rose to bns and je owd bieg The bank pays compound interest on accounts. It pays the interest into the account at th

PLEASE HELP IT IS DUE AT 11:15

Which exchange of dialogue is formatted correctly? A. Dominic squinted suspiciously. "Why are you here?" he asked. "I don't need a reason," Jill said, walking p

Scenario 1: You pull someone over and walk up to their window. When you ask for their ID they pull a gun on you. What do you do? (Use Detail)