Answer:
the solution is (-2,3)
Step-by-step explanation:
a
Answer:
15
Step-by-step explanation:
The way the angles are labeled tell you that they are all congruent. The two triangles you see here also share the side that joins them. Then by the angle-side-angle postulate, the two triangles are congruent, so x + 23 = 13, or x = -10.