seannn00
seannn00 seannn00
  • 02-12-2019
  • Mathematics
contestada

solve this system of equations.
x-y=2
2.5x + y =5

Respuesta :

Yang100
Yang100 Yang100
  • 03-12-2019

Answer:

x=2, y=0. (2, 0).

Step-by-step explanation:

x-y=2

2.5x+y=5

---------------

x=y+2

2.5(y+2)+y=5

2.5y+5+y=5

3.5y=5-5

3.5y=0

y=0/3.5

y=0

x=0+2=2

Answer Link

Otras preguntas

Why is a standard unit of measurement necessary in science and industry?
Will someone please help me !
Why is a non-trivial or predictable classification system preferred in systematics?
An individual who promotes environmental issues most likely works in which field? a. environmental law b. environmental journalism c. environmental activism
How do u get 4+b to =19
Simplify using only positive exponents (w^-2j^-4)^-3(j^7j^3) (Please show your work)
Which of the following was a reason that the US Senate refused to let the United States join the League of Nations? They feared trade disputes with Britain and
the hypotenuse is 10 and one leg is 9 what is the other leg?
which function has the domain of x≥5 and a range of y≤3?
Which expression represents an unknown number minus 45? A. b × 45 B. b – 45 C. b ÷ 45 D. b + 45