Question

1800x{[1926:6+218-(800-873:3)]:[10000-5x1000-(8xa+1342)]}=5400

Answer 1

1800x{[1926:6+218-(800-873:3)]:[10000-5x1000-(8xa+1342)]}=5400
1800x{[321+218-(800-291)]:[10000-5000-(8xa+1342)]}=5400
1800x{(321+218-509):[5000-(8xa+1342)]}=5400
1800x{(539-509):[5000-(8xa+1342)]}=5400
1800x{30:[5000-(8xa+1342)]}=5400
30:[5000-(8xa+1342)]=5400:1800
30:[5000-(8xa+1342)]=3
5000-(8xa+1342)=30:3
5000-(8xa+1342)=10
8xa+1342=5000-10
8xa+1342=4990
8xa=4990-1342
8xa=3648

a=3648:8

a=456