Question

Calcular x de 5(x+2)+2=4x+31

Answer 1

5(x+2)+2=4x+31
5x+10+2=4x+31
5x-4x=31-10-2
x=19

Answer 2

$5\left(x+2\right)+2=4x+31$
$\mathrm{Poner\:los\:parentesis\:utilizando}:\quad \:a\left(b+c\right)=ab+ac$
$5x+10+2=4x+31$
$5x+12=4x+31$
$\mathrm{Restar\:}12\mathrm{\:de\:ambos\:lados}:$
$5x+12-12=4x+31-12$
$5x=4x+19$
$\mathrm{Restar\:}4x\mathrm{\:de\:ambos\:lados}:$
$5x-4x=4x+19-4x$
x=19