Question

x - [a - {a-(y - 【a - b】) + 2b} + b] please help me fast. i will be very thankful to u​

Answer 1

Step-by-step explanation:

simply multiply the sings

1. +,+ is + ,
2. +,- is - ,
3. - , - is +

vise versa.

than add & subtract the variables. (i.e +b -2b+b = 0)