Question

qual a raiz da equacao 20-80+2x=10

Answer 1

20-80+2x=10
2x=10-20+80
2x=70
x=70/2
x=35
Resposta: 35 

Answer 2

20-80+2x=10

2x= 10-20+80

2x= 10+60

2x= 70

x= 70/2

x= 35