Question

3.[x+1-2.(x-3)]=4. {1-[5x-3 (1+x)]}

Answer 1

Olá,

Vamos lá,

3.[x+1-2.(x-3)] =4. {1-[5x-3 (1+x)]}
3.[x+1-2x+6)] = 4. {1-[5x-3-3x)]}
3.[ -x+7] = 4. {1-[ 2x-3)]}
-3x+21 = 4. { - 2x +3}
- 3x + 21 = -8x + 12
- 3x +8x = 12 - 21
5x = -9 
x = -9/5