Question

21x+2=34

-15x=30

-17x-3= -35

Answer 1

21х+2=34;
21х=34-2;
21х=32;
х=32:21
х=1,52;

-15х=30;
х=30:(-15);
х= -2;

-17х-3=-35;
-17х=-35+3
-17х=-32;
х=-32:(-17);
х=1,8;