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

Which of the following is soluble in water? Cu(OH)2 PbSO4 RbNO3 Ca3(PO4)2
slove the system of equations 3x-7y=5 and 9y=5x+5
The —— is the part of the brain that works as the “master switch board” for the endocrine system
y varies inversely as the square of x. If y = 12 when x = 2, then what is x when y = 3?
The mass of hgs h g s that can be made from 30.0g 30.0 g of mercury is
Explain how adding fertilizer to an ecosystem can cause damage to it
_____ is the fear of what others will think of one's ideas. Dialectal inquiry Evaluation apprehension Cognitive conflict Production blocking
Why does a website or service need branding? To gain trust from customers and visitors To look more helpful and casual To appear better than competi
when the wings of an airplane come to a point at the nose like an arrowhead the shape is called
which of the following statements about reading is true? A. You have to sort through material and evaluate what you need to know B. You should always read a tex