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jolyy
@jolyy
July 2022
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решить методом подстановки
x + y = 2
2x - y =3
заранее спасибо
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15102015
Verified answer
X=2-Y
2×(2-y)-y=3
4 -2y-y =3
-3y=3-4
-3y=-1
Y=(-1)/(-3)
Y=1/3
X=2-y=2-1/3=5/3
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Answers & Comments
Verified answer
X=2-Y2×(2-y)-y=3
4 -2y-y =3
-3y=3-4
-3y=-1
Y=(-1)/(-3)
Y=1/3
X=2-y=2-1/3=5/3