You know that 12x=60, and that x=5. which property of equality would you use to conclude that 12•5=60?

ANSWER

The substitution property of equality.

EXPLANATION

We know that:

and that

Since x=5 or 5=x , we can substitute x for 5 wherever we see x in the given equation.

When we do that, we obtain;

This is what we refer to as the substitution property of equality.

-6 is the correct option from the above given options