X=-3
because
-4x=21-9
-4x= 12 divide both sides
x=-3
Answer:
the answer is A. Elijah is correct.
I am pretty confident its 1.0
Answer:
Angles 7, 2, and 6
Step-by-step explanation:
Angle 7 is congruent by corresponding angles to angle 3.
Angle 2 is congruent by vertical angles to angle 3.
Angle 6 is congruent by vertical angles to angle 7, which is congruent to angle 3, so angle 3 and angle 6 must also be congruent.