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0.75 par dekle gawar

Bhai 13 aayega a From simplifying First equation we get, a+ 3d = 10 as d = -1 (From eliminating a from a from both equations) so, a + 3(-1) = 10 a - 3 = 10 a = 10 + 3 Finally "a = 13"

​@@VardaanMittal sahi hai bhai a 13 hai aur d negative 1