Question

помогите ришить пжжжж​

Answer 1

Ответ:

$0.4( - 2x + 8) - 0.5 = - 2.5(1 - 4x) + 0.88 \\ - 0.8x + 3.2 - 0.5 = - 2.5 + 10x + 0.88 \\ 3.2 + 2.5 - 0.8 = 10x + 0.8x \\ 4.32 = 10.8x \\ x = 0.4$

$- 2.4(3 - 1.5x) + 3.5 = 2(4.5x - 2) - 2.4 \\ - 7.2 + 3.6x + 3.5 = 9x - 4 - 2.4 \\ 9x - 3.6x =3.5 - 7.2 + 4 + 2.4 \\ 5.4x = 2.7 \\ x = 0.5$

$6.1(4 - x) - 2.1 = - 3.4( - 1.5x + 2) + 2.22 \\ 24.4 - 6.1x - 2.1 = 5.1x - 6.8 + 2.22 \\ 5.1x + 6.1x = 24.4 - 2.1 + 6.8 - 2.22 \\ 11.2x = 26.88 \\ x = 2.4$