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Gujarat Class 10 Answered

Solve the following pair of linear equation by elimination  4x +19y + 13 = 0 13x - 23y + 19 = 0
question image
Asked by ctmonasara914 | 23 Jan, 2019, 20:26: PM
answered-by-expert Expert Answer
begin mathsize 18px style 4 straight x plus 19 straight y plus 13 equals 0........... open parentheses 1 close parentheses
13 straight x minus 23 straight y plus 19 equals 0.......... open parentheses 2 close parentheses
open parentheses 1 close parentheses cross times 13
52 straight x plus 247 straight y plus 169 equals 0....... open parentheses 3 close parentheses
open parentheses 2 close parentheses cross times 4
52 straight x minus 92 straight y plus 76 equals 0.......... open parentheses 4 close parentheses
open parentheses 3 close parentheses minus open parentheses 4 close parentheses
339 straight y equals negative 93
straight y equals fraction numerator negative 31 over denominator 113 end fraction
sub space in space left parenthesis 1 right parenthesis
straight x equals fraction numerator negative 220 over denominator 113 end fraction
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Answered by Arun | 24 Jan, 2019, 17:29: PM
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