Answer:
2x-1=x+7
-x -x
2x-1=7
+1 +1
2x=7
/2 /2
x=3.5
Step-by-step explanation:
I think its 14.58
luv you
question 1 and 3
use a^2+b^2=c^2
8^2+4^2 12^2
64+8 144
=72
72<144
so no
