Question

-3(0,9x - 1.5) = -9(x - 1.3)

Answer 1

Ответ:

-2,7х+4,5=-9х+11,7

6,3х=7,2

х=7,2\6,3

Пошаговое объяснение:

Answer 2

Ответ:

$- 2.7x + 4.5 = - 9x + 11.7 \\ - 2.7x + 4.5 + 9x - 11.7 = 0 \\ 6.3x - 7.2 = 0 \\ 6.3x = 7.2$

$x = 7.2 \div 6.3 \\ x = \frac{72}{63} = 1 \frac{9}{63} = 1 \frac{1}{7}$