w/-5-10=-4
Simplify both sides of the equation
w/5-10=-4
1/5 w +-10=-4
1/5 w-10=-4
Add 10 to both sides
1/5 w -10 +10= -4=10
1/5 w =6
Multiply both sides by 5
5(1/5 w )=(5)*(6)
w=30
Check my answer
Replace w by 30
30/5-10=-4
-4=-4
I hope that's help and have a great night .