Tali1982 Tali1982
  • 01-04-2021
  • Mathematics
contestada

solve the system of equations -8x+7y=6 and 3x-2y=4 by combining the equations

Respuesta :

Yang100
Yang100 Yang100
  • 03-04-2021

Answer:

x=8, y=10. (8, 10).

Step-by-step explanation:

-8x+7y=6

3x-2y=4

--------------

2(-8x+7y)=2(6)

7(3x-2y)=7(4)

-----------------------

-16x+14y=12

21x-14y=28

-------------------

5x=40

x=40/5

x=8

3(8)-2y=4

24-2y=4

2y=24-4

2y=20

y=20/2

y=10

Answer Link

Otras preguntas

7x = 105 what is the value of x?
Help help help me!!!
Question 4tive identical rectangles are put together to make a large rectangle. The width of one rectangle-is 4cm kork out the perimeter of the largerectangle .
The peripheral nervous system in the human body effectively begins here
What goals are you willing to implement over the next 90 days to save money? Remember a goal without a due date is a wish
The answer to this problem
15 POINTS! ANSWER ASAP! What later Mesoamerican societies did the Olmec have an impact on?
Let f(x)=(3x^2+5)/(Bx+1)(x-2). Determine the value of B so that y=1/4 is a horizontal asymptote of f(x).
At 50oC the forward current flowing through the Si diode is 1mA, then the dynamic resistance of the diode is________?. Select one: a. 86 b. 66 c. 56 d. 76
Bessie Smith is MOST well known for A) organizing a national campaign to make birth control legal. B) writing controversial novels that described the life of a