Question

1800*{[1926:6+218-(800-873:3)]:[10000-(8*a+1342)]}=5400

Answer 1

1800*{[1926:6+218-(800-873:3)]:[10000-(8*a+1342)]}=5400
1800*{[321+218-(800-291]}:[10000-(8*a+1342)]}=5400
1800*[539- 509]:[10000-(8*a+1342)]}=5400
1800*30:(10000-(8*a+1342)=5400
540000:10000-(8*a+1342)=5400
54-8*a+1342=5400
8*a+1342=5400-54
8*a+1342=5346
8*a=5346-1342
8*a=4004
a=4004:8
a=500,rest0