Which of these two systems are easier to solve by elimination?
{
4
x
−
y
=
−
9
−
4
x
−
3
y
=
5
\displaystyle {\left\lbrace\begin{array}{ccc} {4}{x}-{y}&=&-{9}\\-{4}{x}-{3}{y}&=&{5}\end{array}\right.}
{
4
x
−
y
−
4
x
−
3
y
=
=
−
9
5
{
7
x
−
8
y
=
−
6
2
x
=
−
y
−
9
\displaystyle {\left\lbrace\begin{array}{c} {7}{x}-{8}{y}=-{6}\\{2}{x}=-{y}-{9}\end{array}\right.}
{
7
x
−
8
y
=
−
6
2
x
=
−
y
−
9
Solve the system you chose.
(
x
,
y
)
\displaystyle {\left({x},{y}\right)}
(
x
,
y
)
= (
,
)
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