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CBSE Class 10 Answered

Solve the eqution by elimination or substration method
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Asked by vedpanchal562 | 10 May, 2019, 08:41: AM
answered-by-expert Expert Answer
fraction numerator 1 over denominator 2 straight x end fraction plus fraction numerator 1 over denominator 3 straight y end fraction equals 2.... left parenthesis 1 right parenthesis
fraction numerator begin display style 1 end style over denominator begin display style 3 straight x end style end fraction plus fraction numerator begin display style 1 end style over denominator begin display style 2 straight y end style end fraction equals 13 over 6.... left parenthesis 2 right parenthesis
let space 1 over straight x equals straight u space and space 1 over straight y equals straight v
equations space become
fraction numerator begin display style straight u end style over denominator begin display style 2 end style end fraction plus fraction numerator begin display style straight v end style over denominator begin display style 3 end style end fraction equals 2
3 straight u plus 2 straight v equals 12.... left parenthesis 3 right parenthesis
fraction numerator begin display style straight u end style over denominator begin display style 3 end style end fraction plus fraction numerator begin display style straight v end style over denominator begin display style 2 end style end fraction equals 13 over 6
2 straight u plus 3 straight v equals 13.... left parenthesis 4 right parenthesis
open parentheses 3 close parentheses minus open parentheses 4 close parentheses space gives
straight u minus straight v equals negative 1.... left parenthesis 5 right parenthesis
open parentheses 3 close parentheses plus open parentheses 4 close parentheses space gives
5 straight u plus 5 straight v equals 25
straight u plus straight v equals 5.... left parenthesis 6 right parenthesis
left parenthesis 5 right parenthesis plus left parenthesis 6 right parenthesis
2 straight u equals 4
straight u equals 2 comma space sub space in space left parenthesis 5 right parenthesis
straight v equals 3
straight x equals 1 half space and space straight y equals 1 third
Answered by Arun | 10 May, 2019, 09:24: AM
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