Answer:
1. AM = 10
2. x = 21;
AM = 14
Explanation:
5x = 3x + 4
-3x -3x
-----------------
2x = 4
÷2 ÷2
-------------
x = 2
AM = 5x
5(2) = 10
AM = 10
----------------------------------------------------------------------------------------------------------
|-------------x--------------|
*----|----*----|----*----|----*
A H M S
|---7---|
(assuming AH = HM = MS)
7 + 7 +7 = x
21 = x
AM = 14
I hope this helps!