odelllinkin2002
odelllinkin2002
01-11-2017
Mathematics
contestada
3x+5y=2 and 9x+11y=14 equals
Respuesta :
choixongdong
choixongdong
01-11-2017
3x+5y=2 (1)
9x+11y=14 (2)
multiply equation (1) by 3
9x + 15y = 6
so
9x + 15y = 6 (1')
9x + 11y =14 (2)
-------------------------subtract
4y = -8
y = -2
3x+5y =2
3x+5(-2) =2
3x - 10 = 2
3x = 12
x = 4
answer
(4, -2)
Answer Link
VER TODAS LAS RESPUESTAS ( 99+ )
Otras preguntas
WHY IS IT IMPORTANT TO BE UNIFIED FOR THE STRENGTH AND DEFENSE OF OUR NATION ? SHOULD WE FORGET OUR PARTY AFFILIATIONS AND PROMOTE UNITY? WAS GEORGE WASHINGTON
2. Which of the following was not a Union advantage a. Factories b. Railroads C. Knowing the land most battles were fought on (Homefield Advantage) d. Money
How were captive Africans dehumanized
Help me please i need it
a bag contains 12 red checkers and 6 black checkers. You will randomly select two checkers, one at a time, without replacement.
07.01 Are You Awake?—411 File Part 1: Second Great Awakening Chart Use information from the lesson to fill in this chart. Second Great Awakening Causes Courses
I NEED HELP QUICK !!!! On Monday, Mr. Dickens asked his class how many books they read last month and set up a dot plot showing the information period on Tuesda
Complete these sentences in a logical way. 1. Mis profesores supieron... 2. Mi novia no quiso... 3. Ellos pudieron... 4. Ayer conocí... 5. ¿Supiste... ? 6. Ánge
Can someone help me please?
The number of sit-ups Micah does is the sum of twice a number and 25. The number of sit-ups Micah does is also 3 times the number minus 25. How many sit-ups doe
