Respuesta :
-4 = r/20 - 5
Add 5 to both sides
1 = r/20
Multiple by 20 on both sides
20 = r
Add 5 to both sides
1 = r/20
Multiple by 20 on both sides
20 = r
Answer:
r = 20
Explanation:
-4 = r/20 - 5
- Simplify both sides of the equation
-4 = r/20 - 5
-4 = 1/20r + -5
-4 = 1/20r - 5
- Flip the equation
1/20r - 5 = -4
- Add 5 to both sides
1/20r - 5 + 5 = -4 + 5
1/20r = 1
- Multiply both sides of the equation by 20
(20)1/20r = 1(20)
- r = 20
