I can do some of these exercises, but others just leave me completely baffled.
The sum of three integers is 189. The first integer is 28 less than the second. The second integer is 21 less than the sum of the first and third integers. Find the three integers.
1. x + y + z=189
2. x = y - 28
3. y = x + z - 21
I can't get this to work. Have I mixed up my equations?
The sum of three integers is 189. The first integer is 28 less than the second. The second integer is 21 less than the sum of the first and third integers. Find the three integers.
1. x + y + z=189
2. x = y - 28
3. y = x + z - 21
I can't get this to work. Have I mixed up my equations?