2 (3y-2)-4(2y-5)=923 बाय - 2 - 42 बाय -
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6y-4 - 8y+20 = 923
6y-8y -4+20 = 923
-2y + 16 = 923
-2y = 923-16
-2y = 907
-y = 907/2
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