Question

решите уравнение;. 9х=-54; 1,2х=-6; 13х=-6; -21 х=48

Answer 1

9х=-54; 
х=-54:9;
х= -6

1,2х=-6;
х=-6: 1,2
х= -5

 13х=-6;
х=-6:13
х=- 6/13

-21 х=48
х=48:(-21)
х= -48/21
х=- 2 6/21