Question

1 by 2 minus (3 4 -) minus 5 by 4 () is equals to (1 by 2 minus 3 by 4) minus minus 5 by 4 (is which property​

Answer 1

Answer:

So the sign before 1 is minus hence face left and the sign before the latter 1 is minus hence move backward summing up 1 for one time starting from zero. And you got the answer plus 1. Hence proved.