y = 24 * 30 = 30*24
x = 8400 / 6 = 1400
b = 256409 + 42312 = 298721
y÷30=24
y=30÷24
y=1,25
8400÷x=6
x=8400÷6
x=1400
b-42312=256409
b=256409-42312
b=214097
y = 24 * 30 = 30*24
x = 8400 / 6 = 1400
b = 256409 + 42312 = 298721
y÷30=24
y=30÷24
y=1,25
8400÷x=6
x=8400÷6
x=1400
b-42312=256409
b=256409-42312
b=214097