Answer:
x=2
Step-by-step explanation:
x = 2
4x + 5x - 27 = 15 - 12x
9x - 27 = 15 - 12x
9x + 12x = 15 + 27
21x = 42
x = 42/21
a^2+B^2=c^2
7,000 is the answer
12
24/2=12
the triangles are congruent