Question

if a + 1 by a is equal to 7 find a ➖ 1 by a​

Answer 1

Answer:

a+1=7

a=7-1

a=6

I hope it will help you

Answer 2

Answer:

Correct option is

D

{1,2,3,5,7,9}

A={1,3,5,7,9}

B={2,3,5,7}

A∪B={1,2,3,5,7,9}