19=9-4m

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Solution for 19=9-4m equation:


Simplifying
19 = 9 + -4m

Solving
19 = 9 + -4m

Solving for variable 'm'.

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

Add '4m' to each side of the equation.
19 + 4m = 9 + -4m + 4m

Combine like terms: -4m + 4m = 0
19 + 4m = 9 + 0
19 + 4m = 9

Add '-19' to each side of the equation.
19 + -19 + 4m = 9 + -19

Combine like terms: 19 + -19 = 0
0 + 4m = 9 + -19
4m = 9 + -19

Combine like terms: 9 + -19 = -10
4m = -10

Divide each side by '4'.
m = -2.5

Simplifying
m = -2.5

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