Question

x+53896=54123
x-235689=125682
x*36=7956
x:13=21

Answer 1

1)х+53896=54123
х=54123-53896
х=227
2)х-235689=125682
х=125682+235689
х=361371
3)х*36=7956
х=7956:36
х=221
4)х:13=21
х=21*13
х=273