-8+21=m-5

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


Simplifying
-8 + 21 = m + -5

Combine like terms: -8 + 21 = 13
13 = m + -5

Reorder the terms:
13 = -5 + m

Solving
13 = -5 + 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.
13 + -1m = -5 + m + -1m

Combine like terms: m + -1m = 0
13 + -1m = -5 + 0
13 + -1m = -5

Add '-13' to each side of the equation.
13 + -13 + -1m = -5 + -13

Combine like terms: 13 + -13 = 0
0 + -1m = -5 + -13
-1m = -5 + -13

Combine like terms: -5 + -13 = -18
-1m = -18

Divide each side by '-1'.
m = 18

Simplifying
m = 18

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