Question

-0.4-x=
−0.4−x=
\,\,-6(x-3.1)+6x
−6(x−3.1)+6x

Answer 1

Explanation:

I think you meant

-0.4 - x = -6(x - 3.1) + 6x

-0.4 - x = -6x + 6x + 18.6

-0.4 - x = 18.6

-x = 18.6 + 0.4

-x/-1 = 19/-1

x = -19

check

-0.4 - (-19) = -6(-19 - 3.1) + 6(-19)

18.6 = -6(-22.1) + (-114)

18.6 = 132.6 - 114

18.6 = 18.6