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ICSE Class 9 Answered

3x-y=23 x/3+y/4=4
Asked by bhabanicricketer10 | 28 Oct, 2018, 06:44: PM
answered-by-expert Expert Answer
begin mathsize 16px style 3 straight x space minus space straight y space equals space 23 space space... left parenthesis straight i right parenthesis straight x over 3 space plus space straight y over 4 space equals space 4 rightwards double arrow 4 straight x space plus space 3 straight y space equals space 36 space space... left parenthesis ii right parenthesis Multiply space left parenthesis straight i right parenthesis space by space 3 comma space we space get 9 straight x space minus space 3 straight y space equals space 69 space space... left parenthesis iii right parenthesis space Adding space left parenthesis ii right parenthesis space and space left parenthesis iii right parenthesis comma space we space get straight x space equals space 9 space and space straight y space equals space 4 end style
Answered by Yasmeen Khan | 29 Oct, 2018, 10:58: AM

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