Question

Não to conseguindo resolver

5x + 3/10 = -21/30????

Answer 1

$5x + \frac{3}{10} = \frac{-21}{30}$

$5x + \frac{3}{10} = \frac{-7}{10}$

m.m.c. (1,10) = 10

$\frac{50x+ 3}{10}=\frac{-7}{10}$

Descartando os denominadores:

50x + 3 = -7

50x = -7 - 3

50x = -10

$x= \frac{-10}{50}$

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