-9+20=m-10

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Solution for -9+20=m-10 equation: 


Simplifying
-9 + 20 = m + -10

Combine like terms: -9 + 20 = 11
11 = m + -10

Reorder the terms:
11 = -10 + m

Solving
11 = -10 + 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.
11 + -1m = -10 + m + -1m

Combine like terms: m + -1m = 0
11 + -1m = -10 + 0
11 + -1m = -10

Add '-11' to each side of the equation.
11 + -11 + -1m = -10 + -11

Combine like terms: 11 + -11 = 0
0 + -1m = -10 + -11
-1m = -10 + -11

Combine like terms: -10 + -11 = -21
-1m = -21

Divide each side by '-1'.
m = 21

Simplifying
m = 21

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