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

Maria rented a coat at $285 for 3 days. If she rents the same coat for 6 days, she has to pay a total rent of $510. Write an equation in the standard form to re
A major function of the endowment and system is? A) producing and storing energy B) transporting substances in a cell C) manufacturing proteins D) directing th
If h(x)=-2x+3, then what is the ordered pair for the function?
How do i find LM? On number 2 .
Which conjunction would be used to join these two independent clauses? Hold my hand. I’ll drown.
What material did Etruscan Artist use to create sarcophagi
Which best describes how another lullaby for insomniacs uses personification?
Hello, I need help finding the solutions of the equation log base 2 (x+8)+2=2 log base 2 (x) Thank you
Help it's all for science
Elise built a rectangular vegetable garden that is 9 feet long and has an area of 72 square feet. What is the perimeter of Elise’s vegetable garden?