Question

qual é a equação 2x-(x-1)=5-(x-3)

Answer 1

2x(x-1)=5-(x-3)
2x-x+1=5-(x+3)
x+1=8x
x+x=8-1
2x=7
x=7/2
x=3,5

Answer 2

$2x-(x-1)=5-(x-3)\to \\\\ 2x-x+1=5-x+3\to \\\\ 2x-x+x=5+3-1\to \\\\ 2x=7\to \\\\ x= \frac{7}{2}\ ou\ x=3,5$