Question

Resolva essa equação:

2+3[x-(3x+1)]=5[x-(2x-1)]

Answer 1

2+3[x-3x-1]=5[x-2x+1]
2+3x-9x-3=5x-10x+5
-1-6x=-5x+5
-6x+5x=5+1
-x=6
x=-6


2+3[-6-(3×-6+1)]=5[-6-(2×-6-1)]
2+3[-6-(-17)]=5[-6-(-13)]
2+3[11]=5[7]
2+33=35
35=35