Solve the system using addition/elimination method. If there is exactly one solution, write as an ordered pair. If not, choose one of the other options.
{
5
x
+
3
y
=
−
15
−
2
x
+
2
y
=
6
\displaystyle {\left\lbrace\begin{array}{ccccc} {5}{x}&+&{3}{y}&=&-{15}\\-{2}{x}&+&{2}{y}&=&{6}\end{array}\right.}
{
5
x
−
2
x
+
+
3
y
2
y
=
=
−
15
6
One solution:
No solution
Infinite number of solutions
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