Question

alguém poderia me ajudar??!

Answer 1

Letra d.

$2x+1+5(x-3)=3(x+1)+x$

$2x+1+(5x-15)=(3x+3)+x$

$2x+1+5x-15=3x+3+x$

$2x+5x-3x-x=-1+15+3$

$3x=17$

$x=\frac{17}{3}$