Question

resolva a equacao 1°grau 15x-225=0

Answer 1

15x=225.
x=225/15
x=15

Answer 2

$15.x - 225 = 0 \qquad --\ \textgreater \ Passaremos~o~ 225~alterando~o~sinal \\ 15.x = 225 ~ --\ \textgreater \ Passaremos~o~ 15~que~esta~multiplicando~dividindo \\ x = \frac{225}{15} \\ x = 15$