Question

How do I solves these problems

Answer 1

1) 2z= -6
divide both sides by 2
2z/2= -6/2
2 on the left cancels out
z= -3

2) y/-5= 20
multiply both sides by -5
(-5)(y/-5)= (-5)(20)
-5 on the left cancels out
y= -100

Hope this helps! :)