Question

8x-21=3 con comprobación plis que no le entiendo

Answer 1

$\bold{\huge{\blue{\star{ \: Hola\star{}}}}}$

${\hspace{50 pt}\above 1.2 pt}\boldsymbol{\mathsf{Procedimiento}}{\hspace{50 pt}\above 1.2 pt}$

$\bold{\blue{8x = 3 + 21}} \\ \bold{\blue{8x = 24}} \\ \bold{\blue{x = \frac{24}{8} }} \\ \bold{\red{x = 3}}$

${\hspace{50 pt}\above 1.2 pt}\boldsymbol{\mathsf{Comprobar}}{\hspace{50 pt}\above 1.2 pt}$

$\bold{\blue{8 \times 3 - 21 = 3}} \\ \bold{\blue{24 - 21 = 3}} \\ \bold{\orange{3 = 3}}$