Question 231921
6Y-X=20 MULTIPLY THIS EQUATION BY 2 & ADD.
4Y+2X=56
12Y-2X=40
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16Y=96
Y=96/16
Y=6 ANS.
6*6-X=20
36-X=20
-X=20-36
-X=-16
X=16 ANS.
PROOF:
4*6+2*16=56
24+32=56
56=56