Question

1) -x+4,8=0,5x-1,2 2) -3(2,1-4)-4,2=1,2(-5x+0,5)

Answer 1

Ответ:

1)

$- x + 4.8 = 0.5x - 1.2 \\ - x - 0.5x = - 1.2 - 4.8 \\ - 1.5x = - 6 \\ x = 4$

2)

$- 3(2.1 - 4) - 4.2 = 1.2( - 5x + 0.5) \\ - 3 \times ( - 1.9) - 4.2 = - 6x + 0.6 \\ 5.7 - 4.2 = - 6x + 0.6 \\ 6x = - 6x + 0.6 \\ 6x = - 0.9 \\ x = - 0.15$