Question

ayuda por favor
x-3[2x-(x+1)+5(1-x)]=x+(3x-7)-(x+3)

Answer 1

x-3[2x-x-1+5-5x]=x+3x-7-x-3
x-3[4-4x]=3x-10
x-12+12x=3x-10
13x-3x=12-10
10x=2
x=2/10
x=1/5=0,2