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55x + 67y =311 67 x …

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55x + 67y =311 67 x + 55y = 299
  • 4 answers

Pragya . 6 years, 8 months ago

Ayush Mishra

Pragya . 6 years, 8 months ago

i don't think that your answer is correct plz check

Pragya . 6 years, 8 months ago

by substitution method 55x +67y =311 ----------eq. 1 67x +55y =299 ----------eq. 2 from eq. 1 we obtain x = 311 - 67y / 55 ----------eq. 3 substituting the value of x in eq. 2 67(311 - 67y / 55) + 55y = 299 (20837 - 4489y /55) + 55y =299 20837 - 4489y + 3025y = 299 * 55 20837 - 1464y = 16445 -1464y = 16445 - 20837 -1464y = -4392 y = -4392 / -1464 y = 3 putting the value of y in eq. 3 x = 311 - 67(3) / 55 x = 311 - 201 / 55 x = 110/55 x = 2 x = 2 and y = 3

Ayush Mishra 6 years, 8 months ago

x = 4 and y = 3
http://mycbseguide.com/examin8/

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