littlecedrick2202 littlecedrick2202
  • 02-12-2017
  • Mathematics
contestada

How many integer solutions are there to the equation x1+x2+x3=0 if x1,x2,x3 > -5?

Respuesta :

chudung1976
chudung1976 chudung1976
  • 02-12-2017
x1+x2+x3=0 if x1,x2,x3 > -5? 
and the solutions are integer
x1= - 4 and x2+x3=4 we count (-4;4;0), (-4;0;4), (-4;3;1), (-4;1;3), (-4; 2;2), (-4;2;2)
x1= -3 and x2+x3=3 we count (-3; 0;3), (-3;3;0), (-3;1;2), (-3;2;1)
x1= -2 and x2+x3=2 we count (-2;0;2). (-2;2;0), (-2;1;1)
x1= -1 and x2+x3=1 we count (-1;0;1), (-1;1;0)
x1=0 and (0;0;0), (0;1;-1), (0;-1;1)
There are 42 solutions
Have fun
Answer Link

Otras preguntas

which war was documented as the shortest war in history
Cut a 2 yard spool into 5 equal length. How long is each piece of ribbon in feet
what do the abbreviations after a word in the dictionary tell you about the word
If 80 is 80% of a value what is the value
What do you make when you hit a rock with a hammer
Poll taxes for voters ______________________. a. were only in some states b. raised money for states c. kept a lot of African Americans from voting d. all of th
what angle do the minute and hour hands of a clock make at 10:00
If 80 is 80% of a value what is the value
What is 6.64 rounded to the nearest tenth
How long does a regular menstrual cycle last?