\begin{cases} -3x+3y=9 2x-7y=-14 \end{cases}
⎩
⎪
⎪
⎨
⎪
⎪
⎧


−3x+3y=9
2x−7y=−14


Choose 1
Choose 1

(Choice A)
A
x= -2\dfrac25, y=1\dfrac35x=−2
5
2

,y=1
5
3

x, equals, minus, 2, start fraction, 2, divided by, 5, end fraction, comma, y, equals, 1, start fraction, 3, divided by, 5, end fraction

(Choice B)
B
x= -2\dfrac25, y=2\dfrac35x=−2
5
2

,y=2
5
3

x, equals, minus, 2, start fraction, 2, divided by, 5, end fraction, comma, y, equals, 2, start fraction, 3, divided by, 5, end fraction

(Choice C)
C
x= -1\dfrac25, y=1\dfrac35x=−1
5
2

,y=1
5
3

x, equals, minus, 1, start fraction, 2, divided by, 5, end fraction, comma, y, equals, 1, start fraction, 3, divided by, 5, end fraction

(Choice D)
D
x= -1\dfrac25, y=2\dfrac35x=−1
5
2

,y=2
5
3