Angle N is also 105 degrees, they are alternate exterior angles so they are congruent
Answer:
(i)unique solution
Explanation:
We solve for x1 thus in the first equation:
x1-3x3=-3
x1-9=-3
x1=-3+9
x1= 6
We solve for a thus in the second equation:
2x1+ax2-x3=-2
2+a2-x3=-2
a2-x3=-4
a2=-4+x3
I think it's equal to 1 because every expression with the exponent of zero is equal to 1, idk for sure though
