Question 169605
X+Y+Z=137
Y=2X+4
Z=3X-5
X+(2X+4)+(3X-5)=137
6X-1=137
6X=137+1
6X=138
X=138/6
X=23 FOR THE FIRST NUMBER.
Y=2*23+4=46+4=50 FOR THE SECOND NUMBER.
Z=3*23-5=69-5=64 FOR THE LAST NUMBER.
pROOF:
23+50+64=137
137=137