Answer:
false
Step-by-step explanation:
cuz how could negative be positive
The answer would be 2n^2+3n+ 8n-1
Solve by substitution


Just plug in y=-x-1 into y+x=3
So we get:

Simplify that:

And since that is not true, that means this system of equations has no solutions!
Answer:
I'm not sure
Step-by-step explanation:
There is no attachment so we don’t know what this angle is.