-1=9-m

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Solution for -1=9-m equation:


Simplifying
-1 = 9 + -1m

Solving
-1 = 9 + -1m

Solving for variable 'm'.

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

Add 'm' to each side of the equation.
-1 + m = 9 + -1m + m

Combine like terms: -1m + m = 0
-1 + m = 9 + 0
-1 + m = 9

Add '1' to each side of the equation.
-1 + 1 + m = 9 + 1

Combine like terms: -1 + 1 = 0
0 + m = 9 + 1
m = 9 + 1

Combine like terms: 9 + 1 = 10
m = 10

Simplifying
m = 10

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