Bobosharif S. answered • 05/26/18

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Mathematics/Statistics Tutor

If x, y, and z are those three number, then

x+y+z=34

x+y=z+4

x+1=y

If you solve this system of equations you find the numbers:

x=9, y=10, z=15.

It is easy to solve:

The first equation minus the second one gives 2z=30, z=15

Then from the second and third equations:

x+y=19

x-y=-1

x-y=-1

2x=18

x=9

y=10