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Mathematics
Problem
Solve the system
3
x
+
2
y
=
5
3x + 2y = 5
3
x
+
2
y
=
5
and
x
−
y
=
1
x - y = 1
x
−
y
=
1
. The solution
(
x
,
y
)
(x, y)
(
x
,
y
)
is a)
(
5
7
,
−
2
7
)
\left(\dfrac{5}{7},-\dfrac{2}{7}\right)
(
7
5
,
−
7
2
)
b)
(
2
5
,
7
5
)
\left(\dfrac{2}{5},\dfrac{7}{5}\right)
(
5
2
,
5
7
)
c)
(
7
5
,
2
5
)
\left(\dfrac{7}{5},\dfrac{2}{5}\right)
(
5
7
,
5
2
)
d)
(
3
5
,
8
5
)
\left(\dfrac{3}{5},\dfrac{8}{5}\right)
(
5
3
,
5
8
)
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