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Ответ

Ответ дан
amirarslanatazhanov

Ответ:

{4u+5v=1 | ×5

5u+7v=5 | ×(-4)

{ 20u +25v=5

-20u - 28v=-20

(-20 u и 20u сократились

-3v=-15

v=5

4u+5×5=1

4u=-24

u=-6

Ответ: v=5

u=-6

Ответ

Ответ дан
remizovanikol55555

Ответ:

(4u+5v=1)×5

(5u+7v=5)×4

20u+25v=5

-

20u+28v=20

3v=15

v=5

4u+25=1

4u=24

u=6

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