Question

Evaluate a + b for a = b, b = −4.​

Answer 1

Step-by-step explanation:

it means that A= -4

and b= -4

so,

-4+(-4)

-4-4

-8 is the ans

Answer 2

Answer:

-8

Step-by-step explanation:

a+b

b+b [a=b]

2(b)

2(-4)  [since b=-4]

-8 is the answer