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photographer2000
@photographer2000
June 2022
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Решить систему
x+y=9
x-y=1
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Answers & Comments
didllinka28
X+y=9
x-y=1
x=y+1
y+1+y=9
2y+1=9
y=(9-1)/2=4
y=4
x=9-4
x=5
Ответ x=5 y=4
6 votes
Thanks 14
costyabogdanov
Verified answer
X=1+Y ----> X+Y= 9 ---> 1+Y+Y=9 ---> 2Y=8 --> Y= 4 ---> X = 5 :)
23 votes
Thanks 51
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Answers & Comments
x-y=1
x=y+1
y+1+y=9
2y+1=9
y=(9-1)/2=4
y=4
x=9-4
x=5
Ответ x=5 y=4
Verified answer
X=1+Y ----> X+Y= 9 ---> 1+Y+Y=9 ---> 2Y=8 --> Y= 4 ---> X = 5 :)