niyahinthehouse niyahinthehouse
  • 16-10-2020
  • Mathematics
contestada

The sum of 2 numbers is 25. Their difference is 7. Find the numbers. Let x=1st number and y=2nd number

Respuesta :

karun26
karun26 karun26
  • 17-10-2020

Answer:

x= 16 and y = 9

Step-by-step explanation:

1 st equation ; x+y = 25

2 nd equation ; x- y = 7

from 1 st equation

x = 25 - y

now putting value of x in 2 nd equation

x- y = 7

25 - y-y = 7

25 -2y =7

25-7 = 2y

18 = 2y

18/2 = y

y = 9

again

putting value of y in 1 st equation

x = 25-y

x = 25-9

x= 16

Answer Link

Otras preguntas

pls help...... its due by 5 pm.... In Chapter 5, "The Accident" helps dave to realize that he must be his own superhero. How did he realize this? USE RACCE to s
The shock from an electric fence would be the least unpleasant if you were standing A. on dry, thick gravel B. in tall grass C. In wet grass OD. near the livest
While a single act of physical or sexual assault is abusive, verbal and emotional abuse requires a pattern before we can define the relationship as abusive. H
Find the value of x. (7x) (2x+27)
Can I please get help with this question?
If a = 150 inches, b = 50 inches, and C = 120º find c. Round to the nearest tenth of an inch.
FIND the Perimeter of this composite figure.
Can a good attention grabber for an essay be a paragraph long?
4. Years ago, hunters near Yellowstone did not like wolves that competed with them for deer and elk kills. Wolf hunts reduced the population to near extinction,
Which point is located on the x-axis? (–5, 1) (0, –5) (1, 0) (2, 2)