mattiemeredith5 mattiemeredith5
  • 02-07-2020
  • Mathematics
contestada


Solve the system by substitution. In the space provided, type the answer without any
spaces between the letters, numbers, or symbols.
3. x - y= 12
x + y = 18

Respuesta :

alishoaibm2004 alishoaibm2004
  • 02-07-2020

Answer:

x=15,y=3

Step-by-step explanation:

x-y=12

x+y=18

now,x=12+y

substituting in x+y=18

(12+y)+y=18

12+2y=18

2y=18-12

2y=6

y=6/2

y=3

now,x=12+y

so,x=12+3

x=15

Answer Link

Otras preguntas

which of the following are localized on the exterior of a phospholipid bilayer?
During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the machine recommends that the temp
what does the doppler effect do?
Anyone understand coding? Please Help! Thank you! :)
Which of the following is NOT something that Earth's atmosphere protects us from? A. meteoroids B. ultraviolet light C. greenhouse gases D. dangerous parti
Which group of statements best describes the rain forest? A. Group A B. Group B
Answer the question above
helpppppppppppppppppppp
what are shoes equivalent sizes in italy vs America
Which best describes timbuktu and its importance to the mali empire?