Question

-1,5(1,4x-3,5)=0,5(2,3x-9)
Решите пошагово,плиз​

Answer 1

-1,5(1,4x-3,5)=0,5(2,3x-9)

-2,1х+5,25=1,15х-4,5

-2,1х-1,15х=-4,5-5,25

-3,25х=-9,75

х=3

Answer 2

$- 1.5 \times 1.4x - 1.5 \times ( - 3.5) = \\ 0.5 \times 2.3x - 0.5 \times 9 \\ - 2.1x + 5.25 = 1.15x - 4.5$

$- 2.1x + 5.25 - 1.15x + 4.5 = 0 \\ - 3.25 x+ 9.75 = 0 \\ - 3.25x = 0 - 9.75 = - 9.75 \\ x = - 9.75 \div ( - 3.25) \\ x$

$x = 3$