-3.1-2m-1.2-7m=-8m+3.9

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Solution for -3.1-2m-1.2-7m=-8m+3.9 equation:


Simplifying
-3.1 + -2m + -1.2 + -7m = -8m + 3.9

Reorder the terms:
-3.1 + -1.2 + -2m + -7m = -8m + 3.9

Combine like terms: -3.1 + -1.2 = -4.3
-4.3 + -2m + -7m = -8m + 3.9

Combine like terms: -2m + -7m = -9m
-4.3 + -9m = -8m + 3.9

Reorder the terms:
-4.3 + -9m = 3.9 + -8m

Solving
-4.3 + -9m = 3.9 + -8m

Solving for variable 'm'.

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

Add '8m' to each side of the equation.
-4.3 + -9m + 8m = 3.9 + -8m + 8m

Combine like terms: -9m + 8m = -1m
-4.3 + -1m = 3.9 + -8m + 8m

Combine like terms: -8m + 8m = 0
-4.3 + -1m = 3.9 + 0
-4.3 + -1m = 3.9

Add '4.3' to each side of the equation.
-4.3 + 4.3 + -1m = 3.9 + 4.3

Combine like terms: -4.3 + 4.3 = 0.0
0.0 + -1m = 3.9 + 4.3
-1m = 3.9 + 4.3

Combine like terms: 3.9 + 4.3 = 8.2
-1m = 8.2

Divide each side by '-1'.
m = -8.2

Simplifying
m = -8.2

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