Question

Resolva as seguintes equações

2/3 x - 1/4 = - 1/5 x + 1/9

1/3 x - 2 = - 3/5 x - 9

2x - 1/6 = 4/3 x - 1/2

2/3 x + 5 = 5 - 1/2 x

Answer 1

Resposta:

$a)\frac{2}{3}x-\frac{1}{4}=-\frac{1}{5}x+\frac{1}{9}\quad :\quad x=\frac{5}{12}\\b)\frac{1}{3}x-2=-\frac{3}{5}x-9\qad :\quad x=-\frac{15}{2}\\c)2x-\frac{1}{6}=\frac{4}{3}x-\frac{1}{2}\quad :\quad x=-\frac{1}{2}\\d)\frac{2}{3}x+5=5-\frac{1}{2}x\quad :\quad x=0$