Question 124890
LET THE 3 NUMBERS BE W,X,Y,Z. WHERE:
W=X-20
X=Y+Z
Y=W+1
Z=Y+4
WHERE DO WE START TO ELIMINATE THESE UNKNOWNS?????
LETS START WITH THE W & X.
W=(Y+Z)-20 NOW REPLACE W BY(Y-1)
Y-1=Y+Z-20 NOW CANCEL OUT THE Y TERMS.
-1=Z-20 NOW REPLACE Z BY Y+4
-1=Y+4-20 NOW SOLVE FOR Y.
Y=-1-4+20
Y=15 ANSWER. NOW SOLVE FOR Z.
Z=15+4=19 ANSWER. NOW SOLVE FOR X.
X=15+19=34 ANSWER. NOW SOLVE FOR W.
W=34-20=14 ANSWER.
THUS WE HAVE:
W=14
X=34
Y=15
Z=19