Question 185129
X+Y=27 MULTIPLY BY -1/2 & ADD.
X/2+Y/3=11
-X/2-Y/2=-27/2
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Y/3-Y/2=11-27/2
(2Y-3Y)/6=(11*2-27)/2
-Y/6=(22-27)/2
-Y/6=-5/2
-2Y=-30
Y=-30/-2
Y=15 ANS.
X+15=27
X=27-15
X=12 ANS.
PROOF:
12/2+15/3=11
6+5=11
11=11