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Penyelesaian daripersamaan x + 2 y = − 5 dan 3 x + 5 y = − 4 adalah... .

Penyelesaian dari persamaan  dan  adalah... .

  1. x equals negative 38 space d a n space y equals 22

  2. x equals negative 22 space d a n space y equals 38

  3. x equals negative 17 space d a n space y equals 11

  4. x equals 17 space d a n space y equals negative 11

  5. x equals 22 space d a n space y equals negative 11

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A. Acfreelance

Master Teacher

Jawaban terverifikasi

Pembahasan

x plus 2 y equals negative 5 horizontal ellipsis left parenthesis i right parenthesis space space 3 x plus 5 y equals negative 4 horizontal ellipsis left parenthesis i i right parenthesis space M e n g g u n a k a n space c a r a space s u b s t i t u s i space  D a r i space P e r s a m a a n space left parenthesis i right parenthesis space d i p e r o l e h space 2 y equals negative x minus 5 space y equals negative 1 half space x minus 5 over 2 space S u b s t i t u s i space n i l a i space y space k e space P e r s a m a a n space left parenthesis i i right parenthesis space space 3 x plus 5 open square brackets negative 1 half space x minus 5 over 2 close square brackets equals negative 4 space 3 x minus 5 over 2 space x minus 25 over 2 equals negative 4 space 1 half space x minus 25 over 2 equals negative 4 space 1 half space x equals 25 over 2 minus 4 space 1 half space x equals 17 over 2 space x equals 17 space S e l a n j u t n y a space s u b s t i t u s i space n i l a i space x space k e space s a l a h space s a t u space p e r s a m a a n comma space m i s a l k a n space P e r s a m a a n space left parenthesis i right parenthesis comma space m a k a space m e n j a d i space 17 plus 2 y equals negative 5 space 2 y equals negative 5 minus 17 space 2 y equals negative 22 space y equals negative 11 space J a d i comma space p e n y e l e s a i a n n y a space y a i t u space x space equals space 17 space d a n space y space equals space – 11.

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