Question

If 5k = -25, then 5k - 1 = -25- 1
Need help

Answer 1

That is true

5k = -25

If you substitute it into the equation :
5k-1

-25-1= -25-1

It is true.

Hope this helps!

Answer 2

we can find k by:
k = -25/5 = -5
we can plug -5 into the 2nd equation:
5 (-5) -1 = -25 -1
-26 = -26
which is true