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ikon1219
@ikon1219
July 2022
1
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Решите систему уравнений способом сложения
x/3+y/2=1
x/2-3x/5=6
С ответами :x=8.y=-3 1/4
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clevercobra
Первое уравнение умножим на 12
второе уравнение умножим на 10
4x+6y=12
5x-6y=60
9x=72
x=8
5*8-6y=60
40-6y=60
-6y=20
y=-20/6=-10/3=-3 1/3
2 votes
Thanks 6
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Answers & Comments
второе уравнение умножим на 10
4x+6y=12
5x-6y=60
9x=72
x=8
5*8-6y=60
40-6y=60
-6y=20
y=-20/6=-10/3=-3 1/3