jojomaddox10 jojomaddox10

27-11-2019
Mathematics

contestada

what ordered pairs are a solution to the equations

3x-5y=4
-5x+4y=2

(-7,0)
(6,8)
(3,1)
(-2,-2)

Respuesta :

Yang100 Yang100

27-11-2019

Answer:

x=-2, y=-2. (-2, -2)

Step-by-step explanation:

3x-5y=4

-5x+4y=2

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

5(3x-5y)=5(4)

3(-5x+4y)=3(2)

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

15x-25y=20

-15x+12y=6

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

-13y=26

y=26/-13

y=-2

3x-5(-2)=4

3x+10=4

3x=4-10

3x=-6

x=-6/3

x=-2

x=-2, y=-2.

Answer Link

Otras preguntas

What is shown by the structural formula of a molecule or polyatomic ion? a. the arrangement of bonded atoms c. the number of metallic bonds b. the number of ion

Your project team has brainstormed potential solutions to a problem it is facing. you would now like your team to eliminate some of the potential solutions and

The water was pumped out of a backyard pond. What is the domainof this graph?

Tuberculosis is a disease with symptoms that can include a persistent cough (for more than three weeks), chest pain, fever, and weakness. Describe four ways in

Children living at high altitudes develop a larger chest cavity by adulthood than children living at lower altitudes. this is an example of

please help me im stick on this algebra 2 question

What was a difference between the explorers christopher columbus and amerigo vespucci? quiz?

Which social benefits result from healthy sleep? Check all that apply. The person is less likely to get into an accident. The person has less time in the day to

How many moles of glucose, c 6 h 12 o 6 , can be "burned" biologically when 10.0 mol of oxygen is available? c 6 h 12 o 6 ( s ) + 6o 2 ( g ) → 6co 2 ( g ) + 6h

Please answer 1, 3, 5