Question

5x + {−3y − [−x + (12y − x − y)]}​

Answer 1

5x + {−3y − [−x + (12y − x − y)] }​

5x + {−3y − [−x + 12y − x − y] }​

5x + {−3y − [−2x + 11y] }​

5x + {−3y + 2x - 11y }​

5x + { 2x - 14y}​

5x + 2x - 14y

7x - 14y

Eternamente axllxa

Answer 2

Respuesta:

$\boxed{\mathrm{5x+\left\{-3y-\left[-x+\left(12y-x-y\right)\right]\right\}}}$

$\mathrm{Recordar \ que:}$  

$\bold{a+\left(b+c\right)=a+b+c}$

$5x+\left\{-3y-\left[-x+\left(12y-x-y\right)\right]\right\}=5x-3y-\left(-x+\left(12y-x-y\right)\right)$

$-\left(-x+\left(12y-x-y\right)\right)=2x-11y$

$5x-3y+2x-11y$

$\mathrm{Agrupamos \ terminos:}$

$5x+2x-3y-11y$

$5x+2x=7x$

$-3y-11y=-14y$

Solución:

$\boxed{\mathrm{7x-14y}}$

Saludos...