Question

1)3×(-х)+51=6-12. 2)-3х-21=81-84.
поиагите пж​

Answer 1

1) -3Х + 51 = -6

57 = 3Х

Х = 57 : 3

Х = 19

2) -3Х-21 = -3

-18 = 3Х

Х = -6