Question

Find the value of the following expressions
5 (a – b) when a= 5 and b= –4

Answer 1

Step-by-step explanation:

5(a-b)

if,a=5. b=4

5(5-4)

5(1)=5×1=5

Answer 2

Answer:

45

Step-by-step explanation:

a = 5 , b = -4

5(a-b) = 5x(5-(-4)) = 5 x (5+4) = 5 x 9 = 45