Question

Решите уравнение: -3х+10х=-15-6

Answer 1

-3х+10х=-15-6

7x=-21

x=-21/7

x=-3

Answer 2

-3х+10х=-15-6

(-3)х+10х=7х

7х=-3*7

7х=-27

7х=7*(-3)

х=-3