-13+21=m-3

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Solution for -13+21=m-3 equation: 


Simplifying
-13 + 21 = m + -3

Combine like terms: -13 + 21 = 8
8 = m + -3

Reorder the terms:
8 = -3 + m

Solving
8 = -3 + 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 = -3 + m + -1m

Combine like terms: m + -1m = 0
8 + -1m = -3 + 0
8 + -1m = -3

Add '-8' to each side of the equation.
8 + -8 + -1m = -3 + -8

Combine like terms: 8 + -8 = 0
0 + -1m = -3 + -8
-1m = -3 + -8

Combine like terms: -3 + -8 = -11
-1m = -11

Divide each side by '-1'.
m = 11

Simplifying
m = 11

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