m+0.4=3m+0.8

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Solution for m+0.4=3m+0.8 equation: 


Simplifying
m + 0.4 = 3m + 0.8

Reorder the terms:
0.4 + m = 3m + 0.8

Reorder the terms:
0.4 + m = 0.8 + 3m

Solving
0.4 + m = 0.8 + 3m

Solving for variable 'm'.

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

Add '-3m' to each side of the equation.
0.4 + m + -3m = 0.8 + 3m + -3m

Combine like terms: m + -3m = -2m
0.4 + -2m = 0.8 + 3m + -3m

Combine like terms: 3m + -3m = 0
0.4 + -2m = 0.8 + 0
0.4 + -2m = 0.8

Add '-0.4' to each side of the equation.
0.4 + -0.4 + -2m = 0.8 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + -2m = 0.8 + -0.4
-2m = 0.8 + -0.4

Combine like terms: 0.8 + -0.4 = 0.4
-2m = 0.4

Divide each side by '-2'.
m = -0.2

Simplifying
m = -0.2

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