Question

5,6-3(2-2/5x)=0,4(4x+1)
Вирішити

Answer 1

$5.6 - 3(2 - \frac{2}{5} x) = 0.4(4x + 1)$

$56 - 30(2 - \frac{2}{5} x) = 4(4x + 1)$

$12x - 56 - 60 = 16x + 4$

$12x - 4 = 16x + 4$

$12x - 16x = 4 + 4$

$- 4x = 8$

$x = 8 \div ( - 4)$

$x = - 2$