Answer:
I believe this is the answer 9/(5 + 8x)
1. subtract
2. add
3. add
a
Step-by-step explanation:
1. 19(25x2)
19 x 25 = 475
475 x 2 = 950
12
Pythagorean theorem
a²+b²=c²
a²+35²=37²
a²+1225=1369
manipulate the equation
1225-1369=-a²
-144=-a²
√-144=12
a=12