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

A study shows that an influenza vaccine is 71.4% effective in preventing a particular type of influenza. If 15,422 people receive the vaccine, how many would no
True or False: The cycle of seasons on the Earth is caused by the tilt of the Earth on its axis toward and away from the Sun.
Darcy deposited $390 into a savings account. As long as the account balance remains at or above $150, she does not have to pay a service fee for the account. Fo
Macy spent $36 on jeans. This was $12 less than twice what she spent on a shirt. Which equation to help solve this, 12x=36 2x=36-12 2x-12=36 12-2x=36
What ordered pair represents this equation? 3x-y=8 and x+y=2
I need this please anyone
During the revolutionary war what was the definition of loyalist
If the equation of a perpendicular bisector of a triangle is y = 2x + 7, what is the slope of the side that it is bisecting? Explain how you know.
Help!!!!!!!!!!!!!!!!!!!!!!!
Help! Spanish 2, due in 20 minutes!