Question

⦁ (a – b) + (b – a) =

⦁ (b + 12) + (b – 12c) =

⦁ (5a + 4b) + (3b + 2c) =

⦁ (4b + 2c) + (3c - 2) =

⦁ (4cd + 4c) + (5b)=

⦁ (3c – 4 + 2a) + (3c + 4)=

ayudaaa​

Answer 1

(a-b)+(b-a)

a-b+(b-a)

0+b-b

0+0=0