If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:

A. 0
B. 2
C. 4
D. 6

• x-y=9
  x+y=81 from above...
  x=45.....
  
• 10 years agoHelpfull: Yes(1) No(0)
• If 3(x - y) = 27 ...........(1)
  and
  3(x + y) = 243,..............(2)
  
  adding (1) and (2)
  6x=270
  x= 270/6=45
  y = 36
• 13 years agoHelpfull: Yes(0) No(3)