Question

The value of (21b-7b-20b ) is ???

Answer 1

48b

Step-by-step explanation:

21b-7b-20b

21b+27b

48bans

Answer 2

Answer:

=21b-7b-20b

=21b-27b

=-6b

(-)(-)=(+)

so -7b and -20b is added

regards