Question

2x-1=3 respostaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer 1

2x -1 = 3
2x = 3 + 1
2x = 4 
x = 2

Answer 2

2x-1=3

2x=3+1

2x=4

x=4/2

x=2