Question

2x-(x-1)=5-(x-3)
Alguém sabe??

Answer 1

Resposta:

2x-(x-1) = 5-(x-3)

2x-x+1 = 5-x+3

x+1 = 8-x

x+x = 8-1

2x = 7

x = 7/2

X=3,5