Question

Помогите расскрыть скобки
2(х+3)
(2+а)*4
7(s-7)
(3+а)*5
7(х-7)
2(а+b)

Answer 1

2(х+3) = 2х + 6,

(2+а)*4 = 8 + 4а,

7(s-7) = 7s - 49,

(3+а)*5 = 15 + 5а,

7(х-7) = 7х - 49,

2(а+b) = 2а + 2b