Question

Is x is even integer?
a). 2x is even
b) 7x is even​

Answer 1

Answer:

yes x is an even integer

Step-by-step explanation:

2x is even

then x can be odd or even because when we multiply 2 to any number we get the even number

but here 7x is also even then

we can say that when we multiply an odd number with seven then the answer will be odd

7*3=21

7*5=35

7*7=49

7*9=49

here, all the answers we get are odd

but when we multiply 7 with an even number we will get the answer as even

7*2=14

7*4=28

so here we can say that the all answers are even

now, come to the final answer

that is x is a even number

then only the 7x will become even

so here, it is clear that x is even