(a×8+450×250)÷3 147+[(83×6×8 - (20 000-16 216)]=300
(a×8+112 500)÷3 147+[(498×8) - 3 784]=300
(a×8+112 500)÷3 147+(3 984 - 3 784)=300
(a×8+112 500)÷3 147+200=300
(a×8+112 500)÷3 147 = 300 - 200
(a×8+112 500)÷3 147 = 100
a×8+112 500 = 100 × 3 147
a×8+112 500 = 314 700
a×8 = 314 700 - 112 500
a×8 = 202 200
a = 202 200 : 8
a = 25 275
