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

What is a central idea of the passage The oasis Africa? 1. The natural environment can be crueler than other humans. 2. Hardship always leads to future succes
Which function is nonlinear? A.) 9Y + 3 = 0 B.) Y - 4X = 1 C.) Y = 2 + 6X^4 D.)X - 2Y = 7 E.) X^Y + 1 = 2
5 multiplyed by 0.487= 2435. Where does the decimal go?
how many days will it take a 14 year old boy to clean up trash for 12.5 hours at a low temperature of 47 degrees and high temperature of 69 degrees
Which fact about Yeats's background contributes most to the understanding of "When You Are Old"?
Which of the following expression represents the distance between 4.35 and -2 1/5
how did the civil war change american optimism
what is the total number of neutrons in an atom of 57/26 Fe?a-83b-57c-26d-31
a random sample of 20 high school students was surveyed and asked "how long does it take you to get ready for school in the morning?" Which of the following mea
How can the market for a good or service influence business decisions?