4.2-m=1.3

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Solution for 4.2-m=1.3 equation: 


Simplifying
4.2 + -1m = 1.3

Solving
4.2 + -1m = 1.3

Solving for variable 'm'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -1m = 1.3 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -1m = 1.3 + -4.2
-1m = 1.3 + -4.2

Combine like terms: 1.3 + -4.2 = -2.9
-1m = -2.9

Divide each side by '-1'.
m = 2.9

Simplifying
m = 2.9

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