Question

como resolver a equação 2x+1/5=1?

Answer 1

2x/1 + 1/5 = 1/1
10x + 1 = 5
10x = 5-1
10x = 4
x = 4/10

Answer 2

2 x + 1/5 = 1
2 x = 1 - 1/5 m.m.c(1,5)=5
2 x = 5/5 - 1/5
2 x = 4/5
x = 4/5 : 2
x = 4/5 . 1/2
x = 4/10 simplificando
x = 2/5