0.6=-2(m+9.1)

Solution for 0.6=-2(m+9.1) equation:

Simplifying
0.6 = -2(m + 9.1)

Reorder the terms:
0.6 = -2(9.1 + m)
0.6 = (9.1 * -2 + m * -2)
0.6 = (-18.2 + -2m)

Solving
0.6 = -18.2 + -2m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '2m' to each side of the equation.
0.6 + 2m = -18.2 + -2m + 2m

Combine like terms: -2m + 2m = 0
0.6 + 2m = -18.2 + 0
0.6 + 2m = -18.2

Add '-0.6' to each side of the equation.
0.6 + -0.6 + 2m = -18.2 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + 2m = -18.2 + -0.6
2m = -18.2 + -0.6

Combine like terms: -18.2 + -0.6 = -18.8
2m = -18.8

Divide each side by '2'.
m = -9.4

Simplifying
m = -9.4