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 ( 19+ )
Otras preguntas
Which phrase is not the central idea of The Deserted Village? a. the destruction of self-reliance b. the destruction of innocence c. the destructiveness of gree
Which STD is known as a "silent" disease because the majority of infected people have no symptoms? A. Chlamydia B. Syphilis C. Herpes D. Gonorrhea
Which of the following soil types is richest in organic material? A. Yellow soil B. Blue soil C. Dark-colored soil D. Red soi
A _____ is a new substance formed in a chemical reaction. A. coefficient B. product
After testing positive for an STI, it is important to contact all past sexual partners so they can also be tested. Please select the best answer from the choice
is 9.42 a rational number
How many bones do we have
Which of the following is NOT characteristic of tribes? Simple food domestication Small local communities Full-time governmental authorities Reliance on famil
ignore this answer GO AWAY CHOOOOO CHOOOOO
Which of the following is NOT an important part of exercise clothing? a. belts b. shoes c. shirts d. socks
