Question

- (4,1x + 2,5) - (2,3x + 3,9) = 1,6x

Answer 1

-4,1х-2,5-2,3х-3,9=1,6х

-4,1х-2,3х-1,6х=3,9+2,5

-8х=6,4

х=6,4/(-8)

х=-0,8

Answer 2

- (4,1x + 2,5) - (2,3x + 3,9) = - 4,1x - 2,5 - 2,3x - 3,9 = - 6,4x - 6,4 = 1,6x

6,4x-1,4 = 1,6x

- 8x = 6,4

 x = - 0,8