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CBSE Class 10 Answered

SIR,
WHAT IS SIMULTANEOUS METHOD? 
Asked by kamleshsingh826 | 02 Jun, 2016, 04:53: PM
answered-by-expert Expert Answer
T h e r e space i s space n o space s i m u l tan e o u s space m e t h o d. R a t h e r space w e space a r e space s o l v i n g space e q u a t i o n s space i n space t w o space v a r i a b l e s space s i m u l tan e o u s l y. C o n s i d e r space t h e space e q u a t i o ln s comma 3 x plus 2 y equals 11 space space space.. left parenthesis 1 right parenthesis 2 x plus 3 y equals 4 space space space space space.. left parenthesis 2 right parenthesis T o space s o l v e space t h e space a b o v e space s y s t e m space t h r o u g h space e l i m i n a t i o n space m e t h o d comma space w e space m u l t i p l y t h e space e q u a t i o ln space left parenthesis 1 right parenthesis space b y space 3 space a n d space t h e space e q u a t i o n space left parenthesis 2 right parenthesis space b y space 2 H e r e space w e space a r e space d o i n g space t h i s space s i m u l tan e o u s l y. open parentheses 1 close parentheses cross times 3 rightwards double arrow 9 x plus 6 y equals 33 space space space.. left parenthesis 3 right parenthesis open parentheses 2 close parentheses cross times 2 rightwards double arrow 4 x plus 6 y equals 8 space space space space space.. left parenthesis 4 right parenthesis S u b t r a c t i n g space e q u a t i o n space left parenthesis 4 right parenthesis space f r o m space e q u a t i o n space left parenthesis 5 right parenthesis comma space w e space h a v e comma 9 x plus 6 y equals 33 bottom enclose 4 x plus 6 y equals 8 space end enclose 5 x equals 25 rightwards double arrow x equals 5 S u b s t i t u t i n g space t h e space v a l u e space x equals 5 space i n space e q u a t i o n left parenthesis 1 right parenthesis comma space w e space h a v e comma 3 cross times 5 plus 2 y equals 11 rightwards double arrow 2 y equals 11 minus 15 rightwards double arrow 2 y equals negative 4 rightwards double arrow y equals negative 2 T h u s comma space t h e space s o l u t i o n space o f space t h e space s y s t e m space o f space e q u a t i o n s space i s space x equals 5 space a n d space y equals negative 2
Answered by Vimala | 03 Jun, 2016, 10:51: AM

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CBSE 10 - Maths
One says, "Give me a hundred, friend! I shall then become twice as rich as you." The other replies, "If you give me ten, I shall be six times as rich as you." Tell me what is the amount of their (respective) capital?
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CBSE 10 - Maths
Five years ago Nuri was thrice as old as Sonu. Ten years later Nuri will be twice as old as Sonu. How old are Nuri and Sonu?
Asked by choithanimahak | 05 Aug, 2022, 09:06: PM
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CBSE 10 - Maths
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Asked by anuragchoudhary812 | 19 Jul, 2022, 07:00: PM
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CBSE 10 - Maths
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Asked by patelnaimesh842004 | 17 Jul, 2022, 07:43: PM
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CBSE 10 - Maths
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Asked by maitrymody2004 | 12 Jun, 2022, 11:52: PM
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CBSE 10 - Maths
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Asked by tapasyachitore07 | 31 Mar, 2022, 09:30: AM
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CBSE 10 - Maths
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Asked by ananyak4213277 | 17 Sep, 2021, 07:29: PM
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CBSE 10 - Maths
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If ܽa + b = 35 and a − b = 13, where a > b, then find the value of a and ܾb.
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