Question

-1 e a raiz da equaçao 5x+8=5+2x

Answer 1

5x+8-5-2x = 0
3x+3=0
x=-3/3
x=-1

resposta: sim!

Answer 2

5x+8=5+2x isole o x
5x-2x=5-8
3x=-3
x=-3/3
x=-1

sim resposta correta x = - 1
: )    ok?