[ ( a - 12324 x 3 ) : 4 + 26193 x5 ] - 22599x5 = 31436
[ (a - 36972) :4 +130965 ] - 112995 = 31436
[( a- 36972) :4 +130965] = 31436 + 112995
( a- 36972) :4 +130965= 144431
( a -36972 ):4 = 144431 - 130965
( a - 36972) :4 =13466
a- 36972 = 13466x4
a- 36972 = 53864
a = 53864 + 36972
a= 90836