Question

equacao do 1° grau 20x-4=5x

Answer 1

20x-4=5x
20x-5x=4
15x=4
x=$\frac{4}{15}$ 

Answer 2

Resposta:

x=4/15

Explicação passo-a-passo:

20x-4-5x=0

15x-4=0

15x=4

15x/15=4/15

x=4/15