6.262 Решите уравнение:

a) 31(m + 378) = 17267
m + 378 = 17267 / 31
m + 378 = 557
m = 557 - 378
m = 179

б) 202(192 + n) = 98980
192 + n = 98980 / 202
192 + n = 490
n = 490 - 192
n = 298

в) 43966 : (z - 105) = 1157
z - 105 = 43966 / 1157
z - 105 = 38
z = 38 + 105
z = 143

г) 27384 : (3912 - x) = 7
3912 - x = 27384 / 7
3912 - x = 3912
x = 3912 - 3912
x = 0