1) 3r = -30
Divide both sides b 3.
r = -10
2) 80 = -10v
Divide both sides by -10.
v = -8
3) 5n = -20
Divide both sides by 5.
n = -4
4) 7 = 7p
Divide both sides by 7.
p = 1
5) -7n = -49
Divide both sides by -7.
n = 7
~Hope I helped!~
* Also, please make sure to ask these questions individually next time, thanks! :)*
