Answer:
Step-by-step explanation:
The statement
Twice the difference of a number and 8 is written as
2( b - 8)
The expression is greater than - 21 so we represent it by the > sign
So we have
2( b - 8) > - 21
Expand
2b - 16 > - 21
2b > - 21 + 16
2b > - 5
Divide both sides by 2
Hope this helps you