emman24 emman24
  • 25-02-2020
  • Mathematics
contestada

what has the sum of 21 and the difference of 7 answer

Respuesta :

sami13006 sami13006
  • 25-02-2020

Answer:

7

Step-by-step explanation:

x

+

y

=

21

x

−

y

=

7

y

=

21

−

x

x

−

(

21

−

x

)

=

7

x

−

21

+

x

=

7

2

x

=

28

x

=

14

∴

14

+

y

=

21

y

=

7

Answer Link

Otras preguntas

What is the prisoners primary demand? *Criminal Justice question*
The difference between the images projected onto each eye is referred to as ____.
What is a real world example for the following exponential equation: y=200(1.02)^4?
Why is it important to have an honest relationship with your banker about your business activities? a.bankers may share contacts with you that could help your b
A stream that flows into another larger stream is called a a. delta. b. gradient. c. meander. d. tributary.
how did tokugawa ieyasu bring order to japan?
How do you say butterfly in Spanish?
About ____ of all lung cancers occur in smokers
A cat falls from a table of height 1.3 m. What is the impact speed of the cat?
what is the purpose of 4 years college and 2 years colleges