Question

Which property is illustrated by the following ?
if a = b + 7 and b + 7 = 9, then a = 9​

Answer 1

Explanation:

Associative property

We know

a + (b + c) = (a + b) + c

a = b + 7

b + 7 = 9

Rearrange Eq. 2

9 = b + 7

a = b + 7

Hence,

Value of a is 9