Найти неизвестное число.

(340 754 - k) : 6 = 23 800

m х 80 - 32 965 = 31 835

70 х (n : 200) = 16 450

(340 754 - k) : 6 = 23 800

340 754 - k = 23 800 * 6

k = 340 754 - 142800

k = 197954

m х 80 - 32 965 = 31 835

m * 80 = 31 835 + 32 965

m = 64800/80

m = 810

70 х (n : 200) = 16 450

n : 200 = 16 450 : 70

n = 235 * 200

n = 47000

1) 340754 - k=23800*6

340754 - k=142800

k=340754-142800

k=197954

2) m*80=31385+32965

m*80=64800

m=64800:80

m=810

3) n:200=16450:70

n:200=235

n=235*200

n=47000