Question 249426
X+Y+Z=137
Y=2X+4
Z=3X-5
X+2X+4+3X-5=137
6X=137-4+5
6X=138
X=138/6=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 THIRD NUMBER.
PROOF:
23+50+64=137
137=137