which of the following steps indicates thr addition property of equality while solving the equation -1 -6x = x - 15?

-1-6x=x-15

-6x+x=-15 +1

-6x^2=-14

x^2=-14 +6

x^2= -8

x=_/8

x=4

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .