Answer:
2x +21
Step-by-step explanation:

X=7
You divide 14 by 2 to find the proportion (7) then multiply it by 1 to get the base length of the large triangle since they’re congruent.
Answer:
satisfy both equations
Step-by-step explanation:
I may not know many but here it goes...
1,3,5,9,45
Hope this helped you!