300-.8m=120

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Solution for 300-.8m=120 equation: 


Simplifying
300 + -0.8m = 120

Solving
300 + -0.8m = 120

Solving for variable 'm'.

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

Add '-300' to each side of the equation.
300 + -300 + -0.8m = 120 + -300

Combine like terms: 300 + -300 = 0
0 + -0.8m = 120 + -300
-0.8m = 120 + -300

Combine like terms: 120 + -300 = -180
-0.8m = -180

Divide each side by '-0.8'.
m = 225

Simplifying
m = 225

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