Question

I need help with my math
My other question I had I forgot to put my work. :)

Answer 1

z= -300

Explanation:

Flip the equation so it looks like: 0.07z = -21

Then, divide it by 0.07 on both sides, which gets you -300.

You could also divide it by 7 and then multiply that answer by 100 if you want an extra step

Answer 2

-21 = 0.07 z

devide both side by 0.07

-21
----- = z
0.07

z = - 300