Question

Me ayudan a resolver esta ecuación -4=r/20-5

Answer 1

Tenemos : 

- 4 = r/20 - 5

- r/20 = - 5 + 4

- r/20 = - 1

- r = - 1 (20)

- r = - 20

r = 20

Solución : 

r = 20