In 16years, ben will be 3 times as old as he is right now.
how old is he right now?

8 years old is he right now.

Step-by-step explanation:

Let the present age of Ben be x.

As per the statement:

After 16 years.

Age of Ben will be = x + 16

In 16 years, Ben will be 3 times as old as he is right now.

⇒

Subtract x from both sides we have;

Divide both sides by 2 we have;

8 = x

or

x = 8 years

Therefore, 8 years old is he right now.

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)