Using substitution, evaluate the expression b-a, if a = -14 and b = -7.
O 21
O -21
-7
7.
Please help


Using Substitution Evaluate The Expression Ba If A 14 And B 7 O 21 O 21 7 7 Please Help class=

Answer :

a = -14
b = -7
b - a
(-7) - (-14)
-7 + 14
7
So the answer is 7