10M-9=81

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Solution for 10M-9=81 equation: 


Simplifying
10M + -9 = 81

Reorder the terms:
-9 + 10M = 81

Solving
-9 + 10M = 81

Solving for variable 'M'.

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

Add '9' to each side of the equation.
-9 + 9 + 10M = 81 + 9

Combine like terms: -9 + 9 = 0
0 + 10M = 81 + 9
10M = 81 + 9

Combine like terms: 81 + 9 = 90
10M = 90

Divide each side by '10'.
M = 9

Simplifying
M = 9

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