gretchenglg gretchenglg
  • 02-12-2020
  • Mathematics
contestada

What number would you multiply the 2nd equation by in order to eliminate the y terms?
4x - 4y = 16
2x + y = 5

Respuesta :

jahzara06
jahzara06 jahzara06
  • 02-12-2020

Answer:

x=3

y=-1

Step-by-step explanation:

first multiply the 2nd row by 2 so you will get

4x-4y=16

4x+2y=10

then subtract the 2nd row from the first row and so you will get

-6y=6

then solve for y in the above equation

y=-1

then substitute y=-1 into any 2 equations .

i picked the first 1

4x-4 × -1=16

then solve for x .

you will get

x=3

Answer Link

Otras preguntas

What is the Value of x?
To run for the Senate, a candidate must be
Who was Alexander the Great?
What type of cell is cell A? A. Animal B. Bacterial C. Fungal D. Plant
For the first 3% of Hanna's salary, her employer matches 100% of her 401(k) contributions, and from 3% to 12%, Hanna's employer matches 50% of her 401(k) contri
Which point is an x-intercept of the quadratic function f(x) = (x – 4)(x + 2)?
HELPFind the perimeter of the figure with the given coordinates on the left and match to the solution on the right. Round your answer to the nearest tenth if ne
somebody help me please its easy 30pts brainliest!!!!
What is the term for the actual amount of money available in a fiscal year that is set by Congress
List 3 differences between the European and Japanese Feudal system.