Question

реши уровнение 15×(t-10)=255.
d×(2632÷56)=611
(1234+n)+2140=52741

Answer 1

1)15•(t-10)=255
15t-150=255
15t=405
t=405:15
t=27
2)d•(2632:56)=611
47d=611
d=611:47
d=13
3)(1234+n)+2140=52741
1234+n+2140=52741
n=49367