Shortyk8451 Shortyk8451
  • 02-03-2021
  • Mathematics
contestada

How do you solve the system of equations 8x-9y=158x−9y=15 and -x+4y=1−x+4y=1 by combining the equations.

Respuesta :

Muscardinus Muscardinus
  • 03-03-2021

Answer:

x = 3 and y = 1

Step-by-step explanation:

Give system of equations are :

8x-9y=15 ...(1)

−x+4y=1 ...(2)

Multiply equation (2) by 8.

−8x+32y=8 ..(3)

Add equation (1) and (3).

8x-9y -8x + 32y = 15+8

23y = 23

y = 1

Put the value of y in equation (2).

−x+4(1)=1

-x = -4+1

x = 3

Hence, the values of x and y are 3 and 1.

Answer Link

Otras preguntas

Why the electric bell will not work if the Electromagnet is replaced with a permanent magnet? Please help! Will give the brainliest !
can someone help i have been asking for 2 hours
What does certain mean
For any point on the unit circle at angle 0,x= and y =
Answer #3 , i answered #1 and #2 already . #3 : When graphing the relation , which dat should be used on the x - axis ? ​
Please help this is really confusing
How does spencer’s use of chronological order affect the plot of his narrative?.
Which characteristic associated with respiratory effort should be considered when planning care for a client diagnosed with a brainstem injury?.
The graph shows the relationship between time and the number of soda bottles a machine can make. Use the points (4,64) and (6,96) to find the number of soda bot
One side of a triangle is half the longest side. The third side is 11 feet less than the longest side. The perimeter is 54. Find all three sides.