Answer:
The answer is A.
Step-by-step explanation:
In order to see if a coordinate is a solution to any equation, you have to substitute the values of x and y into the equation :
[tex] - 3x + 2y = - 21[/tex]
[tex]let \: x = 5 \\ let \: y = - 3[/tex]
[tex] - 3(5) + 2( - 3) = - 15 - 6 = - 21[/tex]
AND
[tex] - x - y = - 2[/tex]
[tex]let \: x = 5 \\ let \: y = - 3[/tex]
[tex] - 5 - ( - 3) = - 5 + 3 = - 2[/tex]
