-5+21=m-8

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Solution for -5+21=m-8 equation: 


Simplifying
-5 + 21 = m + -8

Combine like terms: -5 + 21 = 16
16 = m + -8

Reorder the terms:
16 = -8 + m

Solving
16 = -8 + 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.
16 + -1m = -8 + m + -1m

Combine like terms: m + -1m = 0
16 + -1m = -8 + 0
16 + -1m = -8

Add '-16' to each side of the equation.
16 + -16 + -1m = -8 + -16

Combine like terms: 16 + -16 = 0
0 + -1m = -8 + -16
-1m = -8 + -16

Combine like terms: -8 + -16 = -24
-1m = -24

Divide each side by '-1'.
m = 24

Simplifying
m = 24

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