Ответ:
Ответ:
Y=2
X=7
Объяснение:
x-2y=3,
X=3+2y
x-3y=1
X=1+3y
1+3y=3+2y
Y=2
X=3+2y=3+2*2=7
Ответ:
Answer:
Arrange the equations. You get
x
=
5
and
y
=
2
Explanation:
x
−
3
y
=
−
1
−
x
−
2
y
=
−
9
(after multiplying the 2nd equation by -1#
Now add these:
−
5
y
=
−
10
y
=
2
Put this value in the 1st original equation:
x
−
(
3
×
2
)
=
−
1
x
−
6
=
−
1
x
=
−
1
+
6
x
=
5