Let x = smallest numberOriginally Posted byPanaboy

y = other number

z = greatest number

z= -8(x) -------(i)

y = x +10 -------(ii)

z = 16(x+y) -------(iii)

Substitute the y from (ii) into (iii),

z = 16(x +x+10) = 16(2x +10) = 32x +160 -------(iv)

Substitute the z from (i) into (iv),

-8x = 32x +160

-8x -32x = 160

x = 160/(-40) = -4 -------answer.

So,

y = x+10 = -4+10 = 6 -------answer.

z = -8x = -8(-4) = 32 ---------answer.

Check,

z = 32x +160

32 =? 32(-4) +160

32 =? -128 +160

32 =? 32

Yes, so, OK.