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Mathematics
Mathematics
Problem
Which of the following ordered pairs satisfies both equations
4
x
−
y
=
9
4x - y = 9
4
x
−
y
=
9
and
x
+
2
y
=
8
x + 2y = 8
x
+
2
y
=
8
? a)
(
23
9
,
26
9
)
\left(\dfrac{23}{9},\dfrac{26}{9}\right)
(
9
23
,
9
26
)
b)
(
10
7
,
23
7
)
\left(\dfrac{10}{7},\dfrac{23}{7}\right)
(
7
10
,
7
23
)
c)
(
26
9
,
23
9
)
\left(\dfrac{26}{9},\dfrac{23}{9}\right)
(
9
26
,
9
23
)
d)
(
26
9
,
−
23
9
)
\left(\dfrac{26}{9},-\dfrac{23}{9}\right)
(
9
26
,
−
9
23
)
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