8=m-9

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Solution for 8=m-9 equation:


Simplifying
8 = m + -9

Reorder the terms:
8 = -9 + m

Solving
8 = -9 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
8 + -1m = -9 + m + -1m

Combine like terms: m + -1m = 0
8 + -1m = -9 + 0
8 + -1m = -9

Add '-8' to each side of the equation.
8 + -8 + -1m = -9 + -8

Combine like terms: 8 + -8 = 0
0 + -1m = -9 + -8
-1m = -9 + -8

Combine like terms: -9 + -8 = -17
-1m = -17

Divide each side by '-1'.
m = 17

Simplifying
m = 17

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