SOLUTION: the sum of three numbers is 12. the frisst number is the differnce of the other two numbers. when you add the other two numbers and subtract 8 the result will be the first number.

Question 464153: the sum of three numbers is 12. the frisst number is the differnce of the other two numbers. when you add the other two numbers and subtract 8 the result will be the first number.
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
the sum of three numbers is 12. the frisst number is the differnce of the other two numbers. when you add the other two numbers and subtract 8 the result will be the first number.
...
1) x+y+z=12
2) x=y-z
3) x=y+z-8
..
1)x+y+z=12
4)x-y-z=-8 (rewrite 3)
add
2x=4
x=2
..
1) x+y+z=12
5) x-y+z=0 (rewrite 2)
subtract
2y=12
y=6
z=y-x (rewrite 2)
z=6-2=4
Check:
x+y+z=2+6+4=12
x=y-z, 2=6-4
x=y+z-8, 2=6+4-8
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