Question

resolva as ecuaçoes fracionarias
a)2 +$\frac{1}{x}$=$\frac{4}{x}$
b)$\frac{3}{x}$-$\frac{4}{5x}$=$\frac{1}{10}$
c)$\frac{3}{2}$-$\frac{x+2}{3x}$=-$\frac{11}{6x}$
me ajudem é para agora

Answer 1

a)

$2+\frac{1}{x} =\frac{4}{x} \times(4x) </p><p>$

$8x+4=16 \\ 8x=16-4 \\ 8x=12 \\ x=\frac{12}{8}$

$x=\frac{12\div4}{8\div4} \\ x=\frac{3}{2}$

b)

b)$\frac{3}{x}-\frac{4}{5x}=\frac{1}{10}\times(10x)$

$30-8=x \\ x=22$

c)

$\frac{3}{2}-\frac{x+2}{3x}=-\frac{11}{6x}\times(6x)$

$9x-2x-4=-11 \\ 7x=-11+4 \\ 7x=-7 \\ x=-\frac{7}{7} \\ x=-1$