aaliyahsantillan7 aaliyahsantillan7
  • 22-07-2020
  • Mathematics
contestada

Find the solution of this system of equations
- 2x + 10y = -22
-2x - 4y = 6

Respuesta :

seaweedtea seaweedtea
  • 22-07-2020

Answer:

x = 1, y = -2

Step-by-step explanation:

- 2x + 10y = -22 _______(1)

-2x - 4y = 6 _______(2)

From (1),

10y + 22 = 2x

x = (10y + 22) / 2

x = 5y + 11 .______(3)

Substitute (3) into (2),

-2 ( 5y + 11) -4y = 6

-10y - 22 - 4y = 6

-14y = 6 + 22

-14y = 28

y = 28/ -14

y =-2

Substitute y = -2 into (3).

x = 5y + 11

x = 5(-2) + 11

x = -10 + 11

x = 1

Therefore, the solution is x = 1, y = -2.

Answer Link

Otras preguntas

Write the mechanism of the reaction of methyl benzoate to form methyl 2-nitrobenzoate.
What was the major goal of Yasser Arafat and the PLO?
i need to find the value of x
help math please fast
Given the following system what is the value of x?
Which of these best explains how radio became big business? A: Leaders of major countries were willing to pay large sums to communicate with each other. B: Com
what progressive reform allowed voters to approve or reject laws passed by legislature
Circle 1 is centered at (−4, 5) and has a radius of 2 centimeters. Circle 2 is centered at (2, 1) and has a radius of 6 centimeters. What transformations can be
What is an example of a physical barrier? How might it affect where species are found?
Which one of the following is NOT a type of reference method that uses a terminal digit system? 1) Account payables 2) Medical records management 3) Account