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 ( 35+ )
Otras preguntas
Carly has spent $15 of her $25 allowance, what percent of her allowance did she spend?
Feelings of resentment toward those who were not native citizens rose during World War I. This was known as nationalism. nativism. nation-building. naturalism.
What city was located within the Eastern Roman Empire? a. baghdad b. alexandria c. persepolis d. yathrib
Which of these nonfiction texts will most likely have a formal tone? 1.a travel guidebook 2.a geography textbook 3.a biography 4.a blog post
What caused colonists to call themselves patriots or loyalists?
Which answer choice best explains why nuclear reactions release more energy than chemical reactions?
Why do scientists look for asteroids that might strike our planet?
Describe the steps that resulted in the development of trench warfare
________ is the biogeochemical cycle that describes the movement of oxygen within and between it's three main reservoirs. A. Oxygen Cycle B. Carbon Cycle C.
What is the situation cause your pupils to change small to large?
