помогите пж 8*(0,7х-4) – 2*(0,2х -3) = -7*(0,3х-8) + 3*(0,4х+5) = 3,2*(5х-1) – (3,6х-9,4) =. Created by Germen2006. matematika-ru

помогите пж 8*(0,7х-4) – 2*(0,2х -3) = -7*(0,3х-8) + 3*(0,4х+5) = 3,2*(5х-1)

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помогите пж 8*(0,7х-4) – 2*(0,2х -3) = -7*(0,3х-8) + 3*(0,4х+5) = 3,2*(5х-1) – (3,6х-9,4) =

Golovolomka2222

$8 \times (0.7x - 4) - 2(0.2x - 3) = 5.6x - 32 - 0.4x + 6 = 5.2x - 26$

$- 7(0.3x - 8) + 3(0.4x + 5) = - 2.1x + 56 + 1.2x + 15 = - 0.9x + 71$

$3.2(5x - 1) - (3.6x - 9.4) = 16x - 3.2 - 3.6x + 9.4 = 12.4x + 6.2$

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