Question

12. Simplify: (2-7 – 3-4)' + (2-1-4-1)​

Answer 1

Answer:

(2-7 - 3-4) + (2-1-4-1)

(5-1) + (1-4-1)

(5-1) + (3-1)

(5-1) + 2

4+2

6