Question

ajutooor va roooog dau 50 puncte si coroana​

Answer 1

Explicație pas cu pas:

a) 1,3×x+2,73=2×(1,2×x-1)

1,3x+2,73=2,4x-2

1,3x-2,4x=-2-2,73

-1,1x=-4,73

x=4,3

b)

$\frac{x}{2} + \frac{4}{9} = \frac{x + 7}{6}$

$9x + 8 = 3(x + 7)$

$9x + 8 = 3x + 21$

$9 \times - 3 \times = 21 - 8$

$6x = 13$

$x = \frac{13}{6}$

c)

$\frac{5 \times x}{10} = \frac{2 \times x - 3}{6} + \frac{1}{3}$

$3(5 x - 1) = 5(2x - 3) + 10$

$15x - 3 = 10x - 5$

$15x - 10x = - 5 + 3$

$5x = - 2$

$x = - \frac{2}{5}$

Sper că te-am ajutat!!~~

coroana?