joey060805 joey060805
  • 01-05-2020
  • Mathematics
contestada

Solve the system of equations.

- 9x + 4y = 6

9x + 5y = -33​

Respuesta :

ChillMuse
ChillMuse ChillMuse
  • 01-05-2020

Let us solve this system of equations by using the elimination method. Adding the 2 equations, we get

9x + 5y - 9x + 4y = -33 + 6

9y = -27

y = -3

Substituting this value of y in the first equation, we get

-9x + 4(-3) = 6

-9x - 12 = 6

9x + 12 = -6

9x = -18

x = -2

Therefore, x = -2, and y = -3. Hope this helps! If you have any questions, feel free to ask.

Answer Link

Otras preguntas

What is the solution set for 3x+2=14 given the replacement set 1,2,3,4
1why do volcanoes erupt 2how do volcanoes erupt
Four elements that comprise over 95% of the human body are
Do you know which of these four countries does not celebrate christmas?
What contributed to rising tensions among industrialized nations in the years leading up to World War I? Question 2 options: A. Competition to develop strong
which describe the direction of prevailing westerlies
how do you figure out 3 1/3 minus 2 2/5
can anyone answer the last question. it is in the picture below.
A photograph is 25 cm wide and 20 am high. it must be reduced to fit a space that is 8 cm high. find the width of the reduced photograph.
Describe two provisions of the Treaty of Versailles and explain how these provisions would lead to World War II.