moneybaga8960 moneybaga8960
  • 02-12-2019
  • Mathematics
contestada

solve the systems of equations using elimination
3x-5y=-2
4x-7y=-3
a.(-1,-1)
b.( -7/3, -1)
c. (-7/3, 1)
d.(1, 1)

Respuesta :

Yang100
Yang100 Yang100
  • 02-12-2019

Answer:

x=1, y=1. (1, 1). The answer is D).

Step-by-step explanation:

3x-5y=-2

4x-7y=-3

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

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

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

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

12x-20y=-8

-12x+21y=9

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

y=1

3x-5(1)=-2

3x-5=-2

3x=-2+5

3x=3

x=3/3

x=1

Answer Link

Otras preguntas

Evaluate the expression when y = 2. 4 + y + 7 A.13 B.15 C.18 D.22 ;)
What is the difference between a cell, a tissue, an organ, and a system in an animals body
When you double your speed, it takes about _____ times as much distance to stop?
How many twentieths are in five halves
What is one major supreme court decision in history that you could think of?
What is the different between an ion and an atom
Why would this African ceremonial mask be worn? to cover the face of a criminal to learn from the teachings of a griot to communicate with ancestors
Why does scarcity exist? A Producers need scarcity to set prices. B Wants are always greater than resources. C Economic institutions control most money. D N
Michael is riding his bicycle. He rides at a speed of 8 kilometers per hour for 12.8 kilometers. For how many hours does he ride?
A sentence with an indirect object must also have