Question

despejar la variante (x +3 ) -4 (x -3) = 10 (x-5) - 40​

Answer 1

Hola!

$\left(x+3\right)-4\left(x-3\right)=10\left(x-5\right)-40$

$x+3-4\left(x-3\right)=10\left(x-5\right)-40$

$-3x+15=10x-90$

$-3x+15-15=10x-90-15$

$-3x=10x-105$

$-3x-10x=10x-105-10x$

$-13x=-105$

$x=\dfrac{105}{13}$

Saludos!