-7m+4.2=9m-43.8

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Solution for -7m+4.2=9m-43.8 equation:


Simplifying
-7m + 4.2 = 9m + -43.8

Reorder the terms:
4.2 + -7m = 9m + -43.8

Reorder the terms:
4.2 + -7m = -43.8 + 9m

Solving
4.2 + -7m = -43.8 + 9m

Solving for variable 'm'.

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

Add '-9m' to each side of the equation.
4.2 + -7m + -9m = -43.8 + 9m + -9m

Combine like terms: -7m + -9m = -16m
4.2 + -16m = -43.8 + 9m + -9m

Combine like terms: 9m + -9m = 0
4.2 + -16m = -43.8 + 0
4.2 + -16m = -43.8

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -16m = -43.8 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -16m = -43.8 + -4.2
-16m = -43.8 + -4.2

Combine like terms: -43.8 + -4.2 = -48
-16m = -48

Divide each side by '-16'.
m = 3

Simplifying
m = 3

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