Question

what is the answer for 2 (a-b)-(b-a)​

Answer 1

Answer:

3a - 3b

Step-by-step explanation:

Given

2(a - b) - (b - a)

Distribute the first parenthesis by 2 and the second by - 1

= 2a - 2b - b + a ← collect like terms

= 3a - 3b

Answer 2

Answer:

$3a-3b$

Step-by-step explanation:

$2(a-b)-(b-a)=2(a-b)-b+a=2a-2b-b+a=3a-3b$