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 ( 86+ )
Otras preguntas
The outermost tissue of a tree trunk that is 6 feet in diameter would most likely be (A) epidermis (B) cork (C) cortex (D) phloem (E) xylem
what were the 4 major causes of imperialism?
Hello. For my french class I have to write a letter to my french friend. In this letter I have to talk about spending my holiday at his house. (for example: wha
"Pilgrim progress" what does the town vanity symbolize?
Which religion has a cultural landmark the dome of the rock
What is the smallest multiple of 6 and 10
A rectangular bedroom floor has an area of 100 square feet and a length of 10 feet. What is the perimeter of the floor?
How to find the area of a circle ?
What is the velocity of an object that has a mass of 2.5 kilogram and a momentum of 1,000 kg·m/sec?
find the value of x to the nearest whole number. Tan x(degree) = 1.732
