Answer:
true
Step-by-step explanation:
-2×(-1) - 3 = 2 - 3 = -1 then (-1 , -1) is a solution of the equation y = -2x - 3
(-1) + (-1) = -2 then (-1 , -1) is a solution of the equation -2 = x + y
Therefore, (-1 , -1) verify each equation of the system.
Conclusion:
(-1 , -1) is a solution of the system :
y = -2x - 3
-2 = x + y
