kit0058
kit0058
02-03-2017
Mathematics
contestada
solve by elimination
Respuesta :
roseberline
roseberline
02-03-2017
2x - 2y = -4
-3x -3y = 0
_____________________
-1x - 5y = -4
Answer Link
H1a2r3s4h5
H1a2r3s4h5
02-03-2017
2x-2y=-4
Multiply eq.by 3
6x-6y=-12
-3x-3y=0
Multiply eq.by 2
-6x-6y=0
from both new eq.
6x-6y=-12
-6x-6y=0
So adding both eq. We get
-12y=-12
So y=1
From eq.1
2x-2y=-4
2x-2(1)=-4
2x-2=-4
2x=-4+2
2x=-2
x=-1
so x=-1 and y=1
Answer Link
VER TODAS LAS RESPUESTAS ( 52+ )
Otras preguntas
Above is an image of King Tut’s Gold Sarcophagus, which is an example of how the Egyptian commemorated the dead. Explain how Egyptian commemorate the wealthy an
True of false is 9.1 largger than √82
Clara has a package of six cookies she wants to share equally among her friends. If Clara makes sure that each piece of cookie will be 3/5 of a cookie, how man
what steps must of a historian take to evaluate historical evidence
how did mary leakey discovery change the modern understanding of prehistoric humans
Which element can help evoke a better sense of mood in your writing?
Which of the these help you understand what people are saying to you
write a fraction that is between 0.1 and 1/5, has a whole -number numerator, and has a denominator of 100.then express an equivalent decimal form for this fr
convert 18/24 to a decimal
A charity has received donations totaling $2370. However, this is only three-fifths of its goal. What is the charity's goal?