Question

1,35 - 3x =- 6 intreg 1 supra3 rezolvati in multimea Q

Answer 1

sper ca te.am ajutat!

Answer 2

$1.35 - 3x = - 6 \frac{1}{3}$

$\frac{135}{100} - 3x = - \frac{6 \times 3 + 1}{3}$

$\frac{135}{100} - 3x = - \frac{19}{3}$

$\frac{27}{20} - 3x = - \frac{19}{3}$

$- 3x = - \frac{19}{3} - \frac{27}{20} \: | \times 60$

$- 180x = - \frac{1140}{3} - \frac{1620}{20}$

$- 180x = - 380 - 81$

$- 180x = - 461 \: | \times ( - 1)$

$180x = 461$

$x = \frac{461}{180}$