sarahlamar382
sarahlamar382
03-12-2014
Mathematics
contestada
3x+4y=2 4x-4y=12 by using elimination
Respuesta :
lakwan007
lakwan007
03-12-2014
(+3x+4y=2)
(+4x-4y=12)
-----------------
7x = 14
-----------------
7
X=2
3(2)+4y=2
6+4y=2
4y=-4
Y=-1.
Or you can plug x into the other equation.
4(2)-4y=12
8-4y=12
-4y=4
Y=-1.
Answer Link
VER TODAS LAS RESPUESTAS ( 41+ )
Otras preguntas
Mary and Jan are both at a gas station at Hill and Elm. From the station, Mary Drives 24 miles north and Jan drives 10 miles west. Find the distance between Mar
Normal faults occur from _____ stress and reverse faults occur from _____ stress.
50 decreased by twice a number
Which phrase from the text suggests it is from an earlier time? Luxurious steamers Delicately tinted Standing like ghosts The tireless hand
What are the reasons for and the goals of the United Nations
What is the answer to 1/3 +5/12?
in edgar allan poe's the raven, what is the last question the speaker asks the bird
Anastasia is grocery shopping with her father and wonders how much shopping is left to fo. "We already have 60% of the items on our list," her father says. Anas
its C right Which describes a result of the American Civil War? A. The Union and the Confederacy remained separated for ten years. B. The treaty ending the war
Which of the following statements regarding vitamins is true? A. Adults don't need to take vitamins or minerals because they're fully grown. B. Your environment
