Question

resolva as equações
me ajudem por favoooor​

Answer 1

Toma aqui tudo organizado é só dar para o prof.

A)
$\frac{3}{4}-\frac{x}{6}=\frac{x}{8}-\frac{1}{3}$

$\frac{9-2x}{12}=\frac{3x-8}{24}$
$(9-2x)*24=12(3x-8)$
$(-2x+9)*24=12*3x-96$
$-24x*2x+216=36x-96$
$-48x=36x-312$
$-84x=-312$
$x=\frac{-26}{-7}$
$x=\frac{26}{7}$

B)

$\frac{12x-4}{6}-\frac{8x-3}{9}=x+\frac{2x+5}{3}$

$\frac{6x-2}{3}-\frac{8x-3}{9}=\frac{3x+2x+5}{3}$
$10x-3=15x+15$
$10x=15x+18$
$-5x=18$
$x=-\frac{18}{5}$

C)

$\frac{5x-1}{10}=1-\frac{1}{2}=\frac{1-2-x}{5}$

$\frac{5x-1}{10}=\frac{1}{2}=\frac{-x-1}{5}$
$\frac{5x-1}{10}=\frac{1}{2}e\frac{1}{2}=\frac{-x-1}{5}$

$x=\frac{6}{5}e\:x=-\frac{7}{2}$


Nenhuma soluçao

Dúvidas??Comente!!