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 ( 84+ )
Otras preguntas
What is potential energy? What are some of its examples.
Segment AB is on the line y − 4 = −5(x − 1), and segment CD is on the line y − 4 = one fifth(x − 5). Which statement proves the relationship of segments AB and
Which of the following belongs in the introduction of an opinion essay?
Find the angle between the vectors ????=????+???? and ????=−????+????. (Give an exact answer. Use symbolic notation and fractions where needed.)
ABC ∆ where Angle A =90° , AB = 12 m, AC = 9 m . Find BC ?( Show all your workings )best answer will marked as brainalistdont put fake ones
Which of the following is most likely the next step in the series?
The fund has 49,000 shares and liabilities of $124,000. Assume the fund is sold with a front-end load of 2.5 percent. What is the offering price of the fund
Using a broader measure of the unemployment rate where discouraged workers and part-time workers who wished to work full time were counted as unemployed, the BL
14. How many numbers multiples of 3 are in the interval [50, 2019]? * 655 656 657 658
Ida Sidha Karya Company is a family-owned company located in the village of Gianyar on the island of Bali in Indonesia. The company produces a handcrafted Balin
