Andre111 Andre111
  • 25-09-2017
  • Mathematics
contestada

If x + y =28 and x - y = -4 , then find the numerical value of y

Respuesta :

Daphyy
Daphyy Daphyy
  • 25-09-2017
12+16=28
12-16= -14
Therefore y= 16
Answer Link
vinzkumar10owgvm7
vinzkumar10owgvm7 vinzkumar10owgvm7
  • 25-09-2017
solve simultaneously! use elimination method.

x+y=28
-
x-y=-4
=0x+2y=32
2y/2=32/2
y=16
Answer Link

Otras preguntas

what is .194 with the 94 repeating as a fraction?
About 15 percent of American households have access to the media. Please select the best answer from the choices provided T F
In which part of Europe are the Germanic languages mainly spoken?
How do you find the area
How to find area of shaded region?
25 POINTS!!!!!!! Which source is the most credible for researching patient treatment during the Spanish flu epidemic of 1919? A. A hospital's listing of patient
Answer number 32 please
what was the name of a are of a Roman republic where business was conducted
Is swimming a good way to build bone mass ? Why or why not?
what causes the British Isles to have mild temperatures? A warm water in the gulf stream B long, hot summers with little rain fall C it's location near Ea