Question

Можете пожалуйста помочь, номер 413​

Answer 1

a) (a+b)–4a = a+b–4a =b–3a

b) 6x–(4–7x) = 6x–4+7x = 13x–4

c) (4b+2)–(5b–b) = 4b+2–5b+b = 2

d) (2x–7a)–(4a+x) = 2x–7a–4a–x = x–11a