brnathy88
brnathy88 brnathy88
  • 04-05-2021
  • Mathematics
contestada

The sum of two numbers is 2. Their difference is -16. What is the first number?

Respuesta :

clarch19
clarch19 clarch19
  • 04-05-2021

Answer:

x = -7

y = 9

Step-by-step explanation:

x + y = 2

x - y = -16

substitute '2-x' for 'y'

x - (2-x) = -16

x - 2 + x = -16

2x - 2 = -16

2x = -14

x = -7

-7 + y = 2

y = 9

Answer Link

Otras preguntas

What function can be used to model data pairs that have common ratio
The ultrasonic is ____ ____ for us to hear it.
What medium do seismic waves travel through?
does a rhombos have 4 congruent angles
Evaluate a + 6 for a = 10.
whish sentence is correct ​
A basketball team will play 12 home games during the season. it has played 6 home games so far. of the season's remaining games,1/3 will be played at home. The
Which of the following are sources of authority? A. a position or job B. a biological or social relationship C. a rule, regulation, or law D. all of these a
Tom saves $5 each month. At this rate, how many months will he need to save $20?
A sports bag has 40 golf balls. Some are yellow and some are white.There are 7 white golf balls for every yellow golf ball. How many white golf balls are there