.3(m-4)=5

Solution for .3(m-4)=5 equation:

Simplifying
0.3(m + -4) = 5

Reorder the terms:
0.3(-4 + m) = 5
(-4 * 0.3 + m * 0.3) = 5
(-1.2 + 0.3m) = 5

Solving
-1.2 + 0.3m = 5

Solving for variable 'm'.

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

Add '1.2' to each side of the equation.
-1.2 + 1.2 + 0.3m = 5 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + 0.3m = 5 + 1.2
0.3m = 5 + 1.2

Combine like terms: 5 + 1.2 = 6.2
0.3m = 6.2

Divide each side by '0.3'.
m = 20.66666667

Simplifying
m = 20.66666667