Реши уравнения 3x=-15; -7x=-21

Question

Реши уравнения 3x=-15; -7x=-21

Answer 1

3х = - 15,
х = - 15:3,
х = - 5,

-7х=-21,
х = - 21 : (-7),
х = 3

Answer 2

3х=-15
х=-15/3
х=-5
3*-5=-15

Comments

-7х=-21,
х = - 21 : (-7),
х = 3