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

A sample of iron has the dimesions of 2 cm x 3cm x 2cm. If the mass of this rectangular-shaped object is 94g, what is the densityof iron?
Why can't water go through sand?
A sewing club used 48 feet of fabric to make 8 blankets. At this rate how many blankets can be made from 12 feet of fabric?
Jerome is keeping track of how many books he and his friends have read during the first 100 days of school. To help Jerome present the data to his teacher, mak
Write 1.2% in a fraction or mixed number in simplest form
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon with this change?
Number that is divisible by1705
Number that is divisible by1705
A _______________ is the spreading of lava that pours out of a volcano.Need help!!!!!
Who is Sunni Ali? He was a great Soninke warrior. He was a great leader of Songhai. He was a great leader of Mali. He went on a pilgrimage to Mecca