tonysanchezgordillo tonysanchezgordillo
  • 17-01-2020
  • Mathematics
contestada

15. 3x – 4y = -1
5x + 2y = 7

Respuesta :

shanselvan shanselvan
  • 18-01-2020

Answer:

x = 1, y = 1

Step-by-step explanation:

3x - 4y = -1

5x + 2y = 7

If we multiply the whole second equation by 2, we get:

10x + 4y = 14

Adding this to the first equation:

10x + 4y + 3x - 4y = 14 - 1

13x = 13

x = 1

Applying this to the second equation:

5 (1) + 2y = 7

2y = 2

y = 1

Answer Link

Otras preguntas

the constitution defines the roles of
Most heritable differences are due to
Which of these statements best explains the origin of life on Earth? Primitive plants were created from living molecules. Plant cells were formed by the destruc
the computer lab at a high school ordered 26 packages of cd's . there were 50 cd's in each package. how many cd's did the computer lab order?
Which of the following would be the most reliable source to consult when creating a safe strength training routine? An article published by a physical therapist
What is the difference between sermons and traditional ministers?
what kind of bond is formed when one atom steals an electron from another atom
The migrations from Asia caused a significant mingling of _____. -cultures and economies -economies and religions -religions and cultures -none of the above
Select the sentence with correct spelling. Choose words with percision and care. Choose words with preciseion and care. Choose words with precision and care.
Simplify a - {5b - [a - (3b - 2c) + c - (a - 2b - c. ]}.