a + b x c = ?
----------------------------
a + 7564 = 14900
a = 14900 - 7564
a = 7336
-----------------------------
b = ( a - 7136 ) : 5
b = ( 7336 - 7136 ) : 5
b = 200 : 5
b = 40
------------------------------------
c = ( 387 : 9 ) - 40
c = 43 - 40
c = 3
---------------------------------------
↓
a = 7336
b = 40
c = 3
→ a + b x c = 7336 + 40 x 3 =
= 7336 + 120
= 7456
