2
x
−
2
y
=
−
8
\displaystyle {2}{x}-{2}{y}=-{8}
2
x
−
2
y
=
−
8
−
7
x
+
6
y
=
21
\displaystyle -{7}{x}+{6}{y}={21}
−
7
x
+
6
y
=
21
Is
(
−
3
,
1
)
\displaystyle {\left(-{3},{1}\right)}
(
−
3
,
1
)
a solution to the system above?
True
False
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